A group of four rounded diamonds, each with an illustrated icon inside of it. The icons are a lightbulb, a group of people talking, a seed sprouting, and a speech bubble with 3 exclamation points inside.

Though it be but little, it is fierce!

How the Preventive Health and Health Services Block Grant Bridges Gaps for Innovative, Community-Informed Public Health Interventions:

A Click-Through Story

Public health funding is insufficient


An image of loose US bills and surgical masks.

The US Public Health System has a long-standing history of underinvestment, leading to a reduction in quality of life for individuals and communities. 1


An ill-equipped, under-resourced health department cannot function effectively.


This leads to slow disease tracking allowing disease like foodborne illness to spread faster; and costly chronic disease management that could have been prevented.


Agencies require flexibility to tackle unique and emerging public health problems including investment in public health infrastructure and capacity.


These investments enable health departments to provide essential public health services and to respond to emergencies so that communities can thrive.

An illustrated gif of an orange speech bubble with three exclamation points that appear inside it. An illustrated orange speech bubble with three exclamation points inside it.

However, categorical grants make up the majority of federal funds distributed to state and local government.2


Funded Federal Grants to State and Local Governments

Chart with 2 data series.
This stacked area chart shows the number of funded federal grants to state and local governments over different fiscal years. It includes two types of grants: Categorical and Block. There are substantially more Categorical than Block.
The chart has 1 X axis displaying Fiscal Year.
The chart has 1 Y axis displaying Number of Grants. Range: 0 to 1400.
Created with Highcharts 9.1.0Number of GrantsFunded Federal Grants to State and Local GovernmentsThis stacked area chart shows the number of funded federal grants to state and local governments over different fiscal years. It includes two types of grants: Categorical and Block. There are substantially more Categorical than Block.CategoricalBlock201820172016201520142013201220091998199519931991198919871984198119781975196819651960195019401930192019020200400600800100012001400Source: American Progress. “How Investing in Public Health Will Strengthen America’s Health.”
End of interactive chart.

The PHHS Block Grant is a longstanding flexible funding source that allows recipients to meet their prioritized needs.


For more than 40 years, the Preventive Health and Health Services Block Grant has served as an essential funding source for state, tribal, territorial, and freely associated state health agencies.


The consistency and sustainability of this grant funding allow recipients to initiate, expand, maintain, and sustain progress on initiatives that complement categorical funding and build a more robust public health infrastructure.

The PHHS Block Grant provides funding to:3


All 50 States +


District of Columbia


2 American Indian Tribes


5 US territories


3 Freely associated states

Recipient Reflections


An illustrated gif where a speech bubble with a quote appears it reads: “the nature of the block grant dollars themselves is [to be] a facilitator.” An illustrated orange speech bubble that reads: “the nature of the block grant dollars themselves is [to be] a facilitator.”

—PHHS Block Grant Coordinator, 2022




An illustrated gif where a speech bubble with a quote appears it reads: “…we [have] more flexibility to use these dollars as needed as opposed to a scripted program... We have the ability to use block grant dollars have more flexibility.”

An illustrated speech bubble with a quote that reads: “…we [have] more flexibility to use these dollars as needed as opposed to a scripted program... We have the ability to use block grant dollars have more flexibility.”

—PHHS Block Grant Coordinator, 2022


Recipients, in collaboration with their advisory committees, use the PHHS Block Grant to address unfunded or underfunded programs that focus on the leading causes of death and disability.

The PHHS Block Grant allows recipients to identify and fund initiatives aligned with national Healthy People objectives that address vital community public health needs in a way that categorical funding may not be equipped to support.

An illustrated gif that shows animated blocks labelled 'categorical' being stacked up and connected with a trowel of "PHHS Mortar" from a bucket. It ends with an unstable wobbling categorical block falling and cracking when it lands at the top, and then the crack is filled with mortar. An illustrated image that shows a stack of bricks labelled 'categorical' that are connected with a trowel of "PHHS Mortar" from a bucket. The top brick on the stack has a crack in it that has also been filled with the mortar.

Recipient Reflections


A mother in a hijab and a father in a kitchen, with their child sitting on the counter. They are all smiling and child is handing the mother a tomato. There is a bowl of tomatoes and a bowl of greens that the mother is handling.



“[T]he block grant gave us some stability… to fully – or more fully – address the needs of families [in our jurisdiction]”

— PHHS Block Grant Coordinator, 2023

Recipient Reflections

Two multiethnic friends in white kn95 masks walking their bikes near trees.



“By definition, the block grant fund gives the recipient ability to address [and] prioritize public health needs in their jurisdiction. [We are able to] set our own goals and … implement the local strategy to address national health priorities, [such as] the response to COVID-19 pandemic.”

— PHHS Block Grant Coordinator, 2022


In FY 21 - 22, recipients (58%) used PHHS Block Grant funds to address emerging public health needs.4


Emerging needs over the past few years have included immunization and infectious diseases and social determinants of health.

Did Recipient Address Emerging Priorities? (n = 50)

Pie chart with 2 slices.
This pie chart shows whether PHHS Block Grant recipients addressed emerging priorities. The chart has two categories: Yes and No, with respective counts of 29 and 21.
Created with Highcharts 9.1.0Did Recipient Address Emerging Priorities?​(n = 50)This pie chart shows whether PHHS Block Grant recipients addressed emerging priorities. The chart has two categories: Yes and No, with respective counts of 29 and 21.58% ​58% 42% ​42% YesNoSource: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Measure 2.1.
End of interactive chart.


118 emerging public health needs were addressed with the PHHS Block Grant in FY 21 – 22.5

Summary of Emerging Needs Addressed by Health Topic Area (n = 118)

Chart with 27 data points.
This word cloud visualizes the summary of emerging needs addressed by health topic area. Each word represents a health topic area, and the size of the word corresponds to the number of needs addressed in that area.
The chart has 1 X axis displaying values. Range: -0.26 to 26.
The chart has 1 Y axis displaying values. Range: 0 to .
Created with Highcharts 9.1.0Immunization and infectious diseasesSocial determinants of healthPublic health infrastructureAccess to health servicesInjury and violence preventionMental health and mental disordersEnvironmental healthPreparednessSubstance abuseHeart disease and strokeHealth communication and health information technologyMaternal, infant, and child healthTobacco useAdolescent healthEducational and community-based programsFood safetyGlobal healthNutrition and weight statusOccupational safety and healthSexually transmitted diseasesCancerChronic kidney diseaseDementia, including Alzheimer’s diseaseDiabetesDisability and healthHIVOral healthSummary of Emerging Needs Addressed by Health Topic Area ​(n = 118)This word cloud visualizes the summary of emerging needs addressed by health topic area. Each word represents a health topic area, and the size of the word corresponds to the number of needs addressed in that area.Source: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Appendix Table 8.
End of interactive chart.

How Emerging Public Health Needs were Addressed in FY 21 - 22 | n = 118 6

How PHHS Block Grant Funds Were Used To Support Emerging Public Health Needs in FY 21 - 22 | n = 118

Chart with 4 data points.
This chart shows how PHHS Block Grant funds were used to support emerging public health needs. The categories are: Initiated new effort, Maintained existing, Enhanced or expanded existing effort, and Sustained or restored an effort, with respective counts of 26, 23, 65, and 4.
Created with Highcharts 9.1.0How PHHS Block Grant Funds Were Used To Support Emerging Public Health Needs in FY 21 - 22 | n = 118This chart shows how PHHS Block Grant funds were used to support emerging public health needs. The categories are: Initiated new effort, Maintained existing, Enhanced or expanded existing effort, and Sustained or restored an effort, with respective counts of 26, 23, 65, and 4.Source: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Appendix Table 11.
Initiated new effort
Maintained existing
Enhanced or expanded existing effort
Sustained or restored an effort
End of interactive chart.


Nearly all recipients (94%) used grant funds to implement public health programs, services, or policies, most of which were evidence based (moderate, strong, or rigorous).7

Used to Support Public Health Interventions? (n = 50)

Pie chart with 2 slices.
This pie chart shows whether PHHS Block Grant funds were used to support public health interventions. The chart has categories "Yes" with 47 counts and "No" with 3 counts.
Created with Highcharts 9.1.0Used to Support Public Health Interventions?​(n = 50)This pie chart shows whether PHHS Block Grant funds were used to support public health interventions. The chart has categories "Yes" with 47 counts and "No" with 3 counts.94% ​94% 6% ​6% YesNoSource: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Measure 3.1.
End of interactive chart.


Of the 947 public health interventions that recipients implemented in FY 21 – 22,
776 (82%) were evidence based.8

Strength of Evidence Base for PHHS Block Grant funded interventions in FY 21-22

Chart with 2 data series.
This packed bubble chart shows the strength of evidence base for PHHS Block Grant funded interventions in FY 21-22. Categories include Rigorous, Strong, Moderate, Limited, None, and Not sure, with respective percentages.
Created with Highcharts 9.1.0Strength of Evidence Base for PHHS Block Grant funded interventions in FY 21-22This packed bubble chart shows the strength of evidence base for PHHS Block Grant funded interventions in FY 21-22. Categories include Rigorous, Strong, Moderate, Limited, None, and Not sure, with respective percentages.Rigorous​RigorousStrong​StrongModerate​ModerateLimited​LimitedNone​NoneNot sure​Not sureEstablished evidenceNot yet established evidenceSource: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Appendix Table 12.
End of interactive chart.


The top 5 health topic areas made up 58% of the 776 total evidence based interventions.9

Top 5 Health Topics by Evidence Strength (n = 453 )

Bar chart with 3 data series.
This stacked bar chart shows the top 5 health topics by evidence strength, including rigorous, strong, and moderate evidence for interventions. The top 5 in order are: Injury and violence prevention, tobacco use, nutrition and weight loss, substance abuse, and physical activity.
The chart has 1 X axis displaying categories.
The chart has 1 Y axis displaying Number of Interventions. Range: 0 to 180.
Created with Highcharts 9.1.0Number of InterventionsTop 5 Health Topics by Evidence Strength (n = 453 )This stacked bar chart shows the top 5 health topics by evidence strength, including rigorous, strong, and moderate evidence for interventions. The top 5 in order are: Injury and violence prevention, tobacco use, nutrition and weight loss, substance abuse, and physical activity.Rigorous EvidenceStrong EvidenceModerate EvidenceInjury and violence preventionTobacco useNutrition and weight statusSubstance abusePhysical activity020406080100120140160180Source: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Appendix Table 15.
End of interactive chart.


An illustrated gif of a seed sprouting. An illustration of a seed sprouting.





In some cases, this grant serves as “seed funding” for innovative projects that a state, tribal, territorial, or freely associated state health agency provides to meet otherwise-unfunded community health goals.


It allows recipients to try intentional, innovative ideas, while remaining good stewards of federal funds.

Wait— what is innovation?

A gif of an illustrated light bulb turning on and shining brightly to represent "innovation". An illustrated light bulb shining brightly to represent "innovation".


The creation and implementation of a novel process, policy, product, program, or system leading to improvements that impact health and equity. It is a new or adapted solution that may be creative, untested and based on context.


Successful innovation results in improved effectiveness, efficiency, or quality.


The process of innovating, through successes and failures, will produce new learning and understanding for informed decision-making and program improvement.10

The PHHS Block Grant also allows recipients to be innovative and find solutions that meet their community’s needs.


Within FY 21 – 22 some recipients leveraged PHHS Block Grant funding to implement untested, innovative and/or new public health interventions.


Of the 43 interventions with a weak or no evidence base, 63% were untested, innovative, and/or new.11

Interventions with Limited Evidence Base: Were they Untested, Innovative, or New? | (n = 43)
Pie chart with 2 slices.
This pie chart shows whether interventions with a limited evidence base were innovative. The chart has two categories: Yes with 27 counts and No with 16 counts.
Created with Highcharts 9.1.0Interventions with Limited Evidence Base: ​Were they Untested, Innovative, or New? | (n = 43)This pie chart shows whether interventions with a limited evidence base were innovative. The chart has two categories: Yes with 27 counts and No with 16 counts.63% ​63% 37% ​37% YesNoSource: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Appendix Table 13.
End of interactive chart.


Innovation as a concept pushes the field to think of new and different ways of addressing challenges to help meet community needs.


An illustrated gif of a group of people with speech bubbles of different colors popping above each of their heads. An illustrationof a group of people with speech bubbles of different colors popping out above each of their heads.

Depending on the need, evidence-based interventions may not exist.


Innovation allows for jurisdictions to balance the current evidence-base with what they hear from their communities.


Often this form of customization isn’t feasible within the structure of categorical funding.

The flexibility of the PHHS Block Grant Funds to meeting emerging needs allows recipients to build the evidence-base. In FY 21 - 22, 65% of the 43 interventions with a limited evidence base collected new data as a result.12

Interventions with Limited Evidence Base: Was Data or Information Collected? | (n = 43)

Pie chart with 2 slices.
This pie chart shows whether data or information was collected for interventions with a limited evidence base. The chart has two categories: Yes with 28 counts and No with 15 counts.
Created with Highcharts 9.1.0Interventions with Limited Evidence Base: ​Was Data or Information Collected? | (n = 43)This pie chart shows whether data or information was collected for interventions with a limited evidence base. The chart has two categories: Yes with 28 counts and No with 15 counts.65% ​65% 35% ​35% YesNoSource: CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” Appendix Table 14.
End of interactive chart.


“[Block grant funding] really helped us … increase our statistical power and our ability to represent diverse populations on that first as well as all of our subsequent surveys heading into the three years of data collection.”

—PHHS Block Grant Coordinator, 2022

Recipient Reflections


An illustrated gif where a speech bubble with a quote appears. It reads: "“We love it when we have ...the opportunity to be innovative, then tailor work to the needs of the community as described by the community.” An illustration of a speech bubble with a quote that reads: "“We love it when we have ...the opportunity to be innovative, then tailor work to the needs of the community as described by the community.”

—PHHS Block Grant Coordinator, 2023




An illustrated gif where a speech bubble with a quote appears. It reads: “Using this funding for stuff that’s dynamic that starts to really show off the importance and the benefit that the block grant funding really has.”

An illustration of a speech bubble with a quote that reads: “Using this funding for stuff that’s dynamic that starts to really show off the importance and the benefit that the block grant funding really has.”

—PHHS Block Grant Coordinator, 2023


Overall recipients utilize the PHHS Block Grant to:


Expand existing programs that are effective and have the biggest impact within the jurisdiction.


Implement programs that are needed for new, unexpected crises.


Achieve state, territorial, and tribal health goals and objectives.


Implement evidence-based programs for the categories that aren’t discretely funded elsewhere.


Try innovative programs that lack categorical funding because they don’t exist yet or because they aren’t “evidence-based/informed” within the public health sector.


Topics addressed by the PHHS Block Grant include:13

PHHS Block Grant - Fiscal Year 2020 Funding by Healthy People 2020 Topics
Chart with 36 data points.
A word cloud visualization of FY 20 – 21 funds allocated by Healthy People 2020 topics
This word cloud visualizes the allocation of funds for various Healthy People 2020 topics under the PHHS Block Grant for FY 20 – 21. Each word represents a topic, and the size of the word corresponds to the amount of funds allocated to that topic. The larger the word, the higher the allocation of funds.
The chart has 1 X axis displaying Healthy People 2020 Topics funded under the PHHS Block Grant. Range: -0.35000000000000003 to 35.
The chart has 1 Y axis displaying Amount of funds allocated. Range: 0 to .
Created with Highcharts 9.1.0Public Health InfrastructureEducational and Community-Based ProgramsNutrition and Weight StatusInjury and Violence PreventionImmunization and Infectious DiseasesHeart Disease and StrokeMaternal, Infant, and Child HealthDiabetesEmergency Medical ServicesHealth Communication and Health Information TechnologyOral HealthFood SafetyEnvironmental HealthPhysical ActivityAccess to Health ServicesCancerRape or Attempted RapeHearing and Other Sensory or Communication DisordersRespiratory DiseasesMental Health and Mental DisordersSexually Transmitted DiseasesOccupational Safety and HealthTobacco UsePreparednessOlder AdultsGenomicsFamily PlanningAdolescent HealthArthritis, Osteoporosis, and Chronic Back ConditionsEarly and Middle ChildhoodHIVDementias, Including Alzheimer's DiseaseHealthcare-Associated InfectionsSubstance AbuseLGBT HealthDisability and HealthPHHS Block Grant - Fiscal Year 2020 Funding by Healthy People 2020 TopicsA word cloud visualization of FY 20 – 21 funds allocated by Healthy People 2020 topicsThis word cloud visualizes the allocation of funds for various Healthy People 2020 topics under the PHHS Block Grant for FY 20 – 21. Each word represents a topic, and the size of the word corresponds to the amount of funds allocated to that topic. The larger the word, the higher the allocation of funds.Source: CDC. “Funding by Topic Area.” Preventive Health and Health Services (PHHS) Block Grant FY 20 - 21.
End of interactive chart.


Thanks for reading!



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An illustrated gif of a seed sprouting.

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You can read more stories about how recipients use the PHHS Block Grant for Innovation, Growth, Community Needs, and Meeting Needs at the links on this webpage.

Footnotes

  1. Source: American Progress. “How Investing in Public Health Will Strengthen America’s Health.” https://www.americanprogress.org/article/how-investing-in-public-health-will-strengthen-americas-health/.

  2. Congressional Research Service. “Federal Grants to State and Local Governments: A Historical Perspective on Contemporary Issues.” https://sgp.fas.org/crs/misc/R40638.pdf.

  3. CDC. “About the PHHS Block Grant Program.” Preventive Health and Health Services (PHHS) Block Grant, May 16, 2024. https://www.cdc.gov/phhs-block-grant/about/index.html.

  4. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Measure 2.1.

  5. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Appendix Table 8.

  6. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Appendix Table 11.

  7. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Measure 3.1.

  8. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Appendix Table 12.

  9. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Appendix Table 15.

  10. Note: This definition is adapted from the Public Health National Center for Innovations and additional input from the environmental scan.
    Source: ASTHO. “Flexible Funding to Support Public Health Innovation.” https://www.astho.org/topic/report/flexible-funding-to-support-public-health-innovation/.

  11. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.” https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Appendix Table 13.

  12. CDC. “PHHS Block Grant Measures Assessment 2022: Key Findings Report.”   https://www.cdc.gov/phhs-block-grant/media/PHHS-Block-Grant-Measures-Assessment-2022-Key-Findings-Report.pdf. Appendix Table 14.

  13. CDC. “Funding by Topic Area.” Preventive Health and Health Services (PHHS) Block Grant, May 15, 2024. https://www.cdc.gov/phhs-block-grant/php/data-research/funding-by-topic/index.html.

Though it be but little, it is fierce! How the Preventive Health and Health Services Block Grant Bridges Gaps for Innovative, Community-Informed Public Health Interventions: A Click-Through Story

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  • Though it be but little, it is fierce!
  • Insufficient Funding
  • Historical Context
  • Public Health Agency Needs
  • Grant Funding Landscape
  • What is the PHHS Block Grant?
  • Recipient Reflections
  • Why Does this Matter?
  • Recipient Reflections
  • Recipient Reflections
  • Addressing Emerging Priorities
  • Public Health Needs Addressed
  • How Needs were Addressed
  • Evidence-based Public Health Interventions
  • Implementing Evidence Based Practices
  • Evidence Based Health Topics
  • Fostering Innovation
  • What is Innovation?
  • Innovative Interventions
  • Innovation Supports Community Needs
  • Building Practice-based Evidence
  • Recipient Reflections
  • Big Picture
  • Topics Addressed
  • Read More
  • Footnotes
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