Mammography use among women aged 50-74 years

US estimate 76.5% (95% interval 75.9–77.1), age-adjusted 76.0% (75.4–76.7). Published in the 2022, 2023, 2024, 2025 releases.

Population: Women aged 50–74 years
Case definition period: Previous 2 years
Prevalence (crude and age-adjusted)

74.3%median county, 2025middle half 71.3%–77.1%

3,143counties with a 2025 estimaterange 48.8%–87.1%

Mammography use among women aged 50-74 years: CDC's PLACES 2025 release estimates 76.5% nationally (95% confidence interval 75.9–77.1%), or 76.0% age-adjusted, from 2022 BRFSS responses.

Across the 3,143 counties with a 2025 estimate, the median county is 74.3% and the middle half of counties fall between 71.3% and 77.1%; the full range runs from 48.8% to 87.1%. Population-weighted state figures computed by this site (no interval) range from 66.0% (Alaska) to 83.7% (Massachusetts).

CDC advises that areas may be compared on individual measures but that the estimates should not be used to rank overall health; the county lists below are ordered by point estimate and every row carries its 95% confidence interval.

CDC's definition

A multilevel regression and post-stratification approach was applied to BRFSS and ACS data to compute a detailed probability among women aged 50–74 years who report having had a mammogram within the previous 2 years. The probability was then applied to the detailed population estimates at the appropriate geographic level to generate the prevalence. The 95% confidence interval was derived using Monte Carlo simulation.

CDC's notes: Recommendations for mammography screening are not always consistent among national groups. Survey questions are part of the BRFSS rotating Core (even years).

Quoted from CDC's PLACES measure definitions (cdc.gov/places/measure-definitions). BRFSS is the Behavioral Risk Factor Surveillance System, the telephone survey the model is trained on.

National distribution across counties

48.8%68.0%87.1%

Crude county point estimates in the 2025 release, 24 equal bins. Deciles: 10th 68.4%, 25th 71.3%, median 74.3%, 75th 77.1%, 90th 79.1%. Counties without a 2025 estimate (Kentucky, Pennsylvania and the states without the social-needs module) are excluded here.

By state

Crude prevalence is the estimated share of all adults. Age-adjusted prevalence is standardised to the 2000 US standard population so that areas with different age structures can be compared. CDC: "Age-adjusted estimates are only available at the county and place-level."

State	State figure, crude (site aggregate)	Lowest county	Highest county	Counties
Massachusetts	83.7%	78.5%	87.1%	14
Rhode Island	82.3%	80.6%	84.3%	5
Maryland	80.7%	73.2%	86.2%	24
Maine	80.3%	74.3%	82.9%	16
Wisconsin	80.3%	74.0%	84.2%	72
Connecticut	79.5%	75.0%	81.4%	9
Louisiana	79.3%	72.5%	82.8%	64
New York	78.9%	69.9%	83.1%	62
New Hampshire	78.8%	72.8%	80.7%	10
Iowa	78.7%	72.9%	83.8%	99
North Carolina	78.7%	73.7%	83.2%	100
Virginia	78.6%	69.3%	82.8%	133
Delaware	78.5%	73.6%	81.0%	3
Minnesota	78.5%	70.7%	83.1%	87
Hawaii	78.3%	70.8%	80.2%	5
North Dakota	78.0%	61.5%	82.2%	53
Alabama	77.9%	69.5%	84.7%	67
Pennsylvania	77.7%	73.3%	81.2%	67
Oregon	77.6%	70.3%	82.4%	36
South Carolina	77.6%	68.5%	80.8%	46
District of Columbia	77.4%	77.4%	77.4%	1
Michigan	76.9%	69.7%	81.1%	83
South Dakota	76.6%	58.5%	81.0%	66
Indiana	76.4%	68.6%	81.1%	92
Florida	76.1%	64.3%	78.6%	67
Vermont	76.1%	73.3%	80.0%	14
West Virginia	76.1%	69.0%	83.0%	55
Ohio	76.0%	66.8%	83.7%	88
Georgia	75.8%	67.5%	80.6%	159
California	75.7%	68.9%	80.2%	58
New Jersey	75.7%	70.7%	80.9%	21
Tennessee	75.2%	65.3%	80.2%	95
Nebraska	75.0%	68.5%	80.3%	93
Montana	74.8%	66.0%	80.0%	56
Missouri	74.7%	64.6%	80.5%	115
Kansas	74.6%	66.7%	79.4%	105
Washington	74.2%	62.7%	76.9%	39
Texas	74.1%	61.6%	79.4%	253
Mississippi	74.0%	67.5%	78.4%	82
Illinois	73.5%	64.1%	76.5%	102
Arizona	72.7%	58.7%	75.0%	15
Kentucky	72.7%	64.4%	79.0%	120
Utah	72.1%	61.6%	76.6%	29
Colorado	71.6%	63.7%	77.4%	64
Arkansas	71.4%	65.3%	76.1%	75
Oklahoma	70.4%	60.0%	75.1%	77
New Mexico	70.3%	59.0%	76.9%	33
Idaho	69.1%	61.7%	75.9%	44
Nevada	69.1%	67.9%	75.2%	17
Wyoming	67.8%	61.5%	72.9%	23
Alaska	66.0%	48.8%	72.2%	30

State	State figure, age-adjusted (site aggregate)	Counties
Massachusetts	83.4%	14
Rhode Island	82.2%	5
Maryland	80.3%	24
Maine	79.9%	16
Wisconsin	79.9%	72
Connecticut	79.1%	9
Louisiana	78.7%	64
New York	78.5%	62
North Carolina	78.4%	100
New Hampshire	78.3%	10
Virginia	78.3%	133
Iowa	78.1%	99
Minnesota	78.1%	87
Delaware	77.8%	3
Hawaii	77.5%	5
North Dakota	77.5%	53
Alabama	77.3%	67
Pennsylvania	77.1%	67
South Carolina	77.1%	46
District of Columbia	77.0%	1
Oregon	76.9%	36
Michigan	76.3%	83
South Dakota	76.2%	66
Indiana	75.8%	92
Georgia	75.5%	159
Ohio	75.5%	88
Vermont	75.5%	14
West Virginia	75.4%	55
California	75.3%	58
Florida	75.2%	67
New Jersey	75.2%	21
Tennessee	74.7%	95
Missouri	74.2%	115
Nebraska	74.1%	93
Kansas	73.8%	105
Montana	73.8%	56
Texas	73.8%	253
Washington	73.7%	39
Mississippi	73.5%	82
Illinois	73.0%	102
Arizona	72.4%	15
Kentucky	72.2%	120
Utah	71.6%	29
Colorado	71.0%	64
Arkansas	70.7%	75
Oklahoma	69.6%	77
New Mexico	69.5%	33
Nevada	68.5%	17
Idaho	68.2%	44
Wyoming	66.7%	23
Alaska	65.3%	30

State figures are population-weighted county estimates computed by this site (PLACES publishes no state row) and carry no interval; they are listed by point estimate, which is not a ranking of states' health. Lowest and highest county columns are crude point estimates. * This measure was not published for the state in the 2025 release; its figure, county count and county range come from the release in brackets, the most recent that has them.

Highest county estimates

County	Crude	95% interval
Plymouth County, MA	87.1%	82.9–90.4
Norfolk County, MA	86.6%	82.5–90.4
Anne Arundel County, MD	86.2%	82.3–89.3
Suffolk County, MA	85.4%	81.3–89.0
Jefferson County, AL	84.7%	80.3–88.5
Worcester County, MA	84.5%	80.1–88.2
Kent County, RI	84.3%	79.5–88.5
Ozaukee County, WI	84.2%	78.5–89.0
Hampshire County, MA	84.0%	78.5–88.5
Scott County, IA	83.8%	78.7–88.1
Waukesha County, WI	83.8%	79.4–87.8
Delaware County, OH	83.7%	78.9–87.6
Essex County, MA	83.5%	78.5–87.4
Bristol County, RI	83.5%	77.7–88.2
Forsyth County, NC	83.2%	77.2–88.1
Waupaca County, WI	83.2%	77.3–87.9
Washington County, MN	83.1%	78.5–87.0
Saratoga County, NY	83.1%	77.7–87.7
Howard County, MD	83.0%	77.3–87.7
Monongalia County, WV	83.0%	77.3–87.8

County	Age-adj.	95% interval
Plymouth County, MA	86.6%	82.3–90.1
Norfolk County, MA	86.4%	82.3–90.2
Anne Arundel County, MD	86.0%	82.1–89.2
Suffolk County, MA	85.0%	80.8–88.6
Jefferson County, AL	84.2%	79.6–88.1
Worcester County, MA	84.0%	79.4–87.8
Kent County, RI	83.9%	79.0–88.1
Hampshire County, MA	83.8%	78.3–88.4
Bristol County, RI	83.8%	78.0–88.4
Essex County, MA	83.6%	78.7–87.6
Waukesha County, WI	83.6%	79.1–87.6
Delaware County, OH	83.5%	78.7–87.5
Ozaukee County, WI	83.5%	77.6–88.6
Scott County, IA	83.3%	78.1–87.8
Washington County, MN	83.0%	78.4–87.0
Saratoga County, NY	83.0%	77.6–87.6
Howard County, MD	82.9%	77.1–87.6
St. James Parish, LA	82.8%	76.5–88.2
Racine County, WI	82.8%	77.7–87.2
Middlesex County, VA	82.7%	79.7–86.8

Lowest county estimates

County	Crude	95% interval
Kusilvak Census Area, AK	48.8%	38.9–59.0
Bethel Census Area, AK	57.1%	47.6–65.8
Oglala Lakota County, SD	58.5%	50.1–66.3
Apache County, AZ	58.7%	50.7–66.0
Nome Census Area, AK	58.8%	49.3–68.3
San Juan County, NM	59.0%	51.5–66.2
Fairbanks North Star Borough, AK	59.7%	51.7–66.8
Hughes County, OK	60.0%	49.9–69.1
Adair County, OK	60.9%	51.4–70.2
Big Horn County, WY	61.5%	52.8–69.9
Sioux County, ND	61.5%	51.3–70.9
San Juan County, UT	61.6%	52.2–70.3
Kenedy County, TX	61.6%	55.1–68.2
Lincoln County, ID	61.7%	51.9–70.7
Canyon County, ID	61.7%	54.1–67.9
Carbon County, WY	61.9%	53.2–70.3
Duchesne County, UT	61.9%	53.3–70.1
Owyhee County, ID	62.0%	52.2–71.1
Aleutians East Borough, AK	62.0%	52.1–71.0
Dimmit County, TX	62.2%	52.7–70.9

County	Age-adj.	95% interval
Kusilvak Census Area, AK	48.5%	38.6–58.8
Bethel Census Area, AK	57.2%	47.6–65.8
San Juan County, NM	57.6%	50.1–64.9
Apache County, AZ	58.0%	50.0–65.4
Oglala Lakota County, SD	58.2%	49.6–66.1
Fairbanks North Star Borough, AK	58.4%	50.6–65.6
Nome Census Area, AK	58.7%	49.3–68.3
Hughes County, OK	58.8%	48.5–68.0
Carbon County, WY	60.1%	51.1–68.9
Big Horn County, WY	60.4%	51.5–68.9
Lincoln County, ID	60.5%	50.7–69.7
Adair County, OK	60.6%	51.1–70.0
Canyon County, ID	60.7%	53.1–67.0
Platte County, WY	60.8%	51.7–69.5
San Juan County, UT	60.9%	51.4–69.6
Kenedy County, TX	61.0%	54.6–67.8
Owyhee County, ID	61.1%	51.2–70.3
Kenai Peninsula Borough, AK	61.3%	53.7–67.8
Yavapai County, AZ	61.4%	54.5–68.0
Mohave County, AZ	61.5%	54.4–68.5

Twenty counties at each end by point estimate. Small counties have wide intervals; many of these intervals overlap one another, so the order within each list is not a meaningful ranking. CDC: "the data should not be used for ranking the overall health of any county, place, census tract, or ZCTA."

National estimate by release

Release	Crude	Age-adjusted	BRFSS year
2022 release	78.2% 77.5–78.8	77.8%	2020
2023 release	78.2% 77.5–78.8	77.8%	2020
2024 release	76.5% 75.9–77.1	76.0%	2022
2025 release	76.5% 75.9–77.1	76.0%	2022

CDC's US row from each release's county file, for reference. Survey questions and modelling details change between releases; see the release pages.

Questions and answers

How does PLACES define "mammography use among women aged 50-74 years"?

A multilevel regression and post-stratification approach was applied to BRFSS and ACS data to compute a detailed probability among women aged 50–74 years who report having had a mammogram within the previous 2 years. The probability was then applied to the detailed population estimates at the appropriate geographic level to generate the prevalence. The 95% confidence interval was derived using Monte Carlo simulation. Population: Women aged 50–74 years. Time period of case definition: Previous 2 years.

What is the national estimate for mammography?

76.5% (95% confidence interval 75.9–77.1%) crude and 76.0% age-adjusted in the 2025 release.

Which counties have the highest and lowest estimates?

The highest county point estimate is 87.1% (Plymouth County, MA) and the lowest 48.8% (Kusilvak Census Area, AK). Because the intervals for neighbouring positions usually overlap, the lists are a reference for point estimates, not a ranking.

Is a higher figure better or worse?

This site does not grade measures. CDC groups them as health outcomes, prevention, health risk behaviors, disability, health status and health-related social needs; for prevention measures such as checkups and screening a higher share reports the service, for the others a higher share reports the condition or circumstance.

Where does this data come from?

CDC PLACES: Local Data for Better Health, 2025 release (data updated 4 Dec 2025); the definition text is CDC's own from its measure definitions pages.

Provenance

Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, 2025 release (data updated 4 Dec 2025), with the 2022, 2023, 2024 releases for reference; US government work, public domain. Dataset on data.cdc.gov. Boundaries and ZIP-to-county relationships: US Census Bureau. Percentages are shown to one decimal as CDC publishes them; state figures are population-weighted means computed by this site. Definition text is CDC's own, from the PLACES measure definitions pages (public domain), with its burden narrative and references omitted. Processing errors are corrected at the next daily build; see corrections. Generated 30 Sep 2026.