Health by ZIP

Mercer County, NJ health estimates

New Jersey. 381,671 residents, 298,044 adults (the Census population estimates that PLACES uses). 22 ZIP Codes and 18 places with estimates.

Compare with another placeZIP Codes of the county (CSV)

Mercer County in New Jersey. Boundaries: US Census Bureau.

The figures are model-based estimates for the adults of an area. They are not measurements. They say nothing about one person.

We do not produce estimates for individuals; only aggregated results for counties, places, census tracts, or ZCTAs.

First, it is not adequate to simply compare point estimates. The confidence intervals should also be considered, and some are very broad.

Centers for Disease Control and Prevention, PLACES Frequently Asked Questions (page dated 11 Dec 2025, read on 2 Oct 2026)

PLACES 2025 release. Survey years (BRFSS): 2022 and 2023. CDC updated the data on . What an estimate is. How to read an interval. The site gives no medical advice.

CDC estimates that 25.4% of the adults of Mercer County, NJ have obesity.

The 95% confidence interval is 21.5% to 29.7%.

PLACES 2025, BRFSS 2023.

Report card: 40 measures by CDC category

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

"Higher" or "lower": the two 95% confidence intervals do not overlap. "Similar": they overlap. Against the state figure, which has no interval, the words are "above", "below" and "in line".

Health outcomes: Mercer County, NJ
MeasureEstimate and interval on a scale of 0 to 50%Estimate95% intervalNJ figure (site aggregate)United States
All teeth lost among adults aged ≥65 yearsBRFSS 202211.0%8.8 to 13.39.6%in line12.2%similar11.4%9.1 to 13.89.8%in line12.6%similar
Arthritis among adultsBRFSS 202320.5%18.2 to 22.822.2%in line25.4%lowerinterval 25.1 to 25.618.0%16.0 to 20.119.0%in line21.9%lowerinterval 21.6 to 22.1
Cancer (non-skin) or melanoma among adultsBRFSS 20237.0%6.3 to 7.77.5%in line7.9%lowerinterval 7.8 to 8.16.0%5.4 to 6.66.1%in line6.6%similar
Chronic obstructive pulmonary disease among adultsBRFSS 20234.9%4.1 to 5.95.1%in line6.2%lowerinterval 6.1 to 6.34.4%3.7 to 5.24.4%in line5.3%similar
Coronary heart disease among adultsBRFSS 20235.4%4.8 to 6.15.6%in line6.4%lowerinterval 6.2 to 6.54.7%4.1 to 5.34.6%in line5.3%similar
Current asthma among adultsBRFSS 20239.0%7.9 to 10.18.9%in line9.8%similar8.9%7.9 to 10.18.9%in line9.8%similar
Depression among adultsBRFSS 202314.8%12.7 to 17.115.1%in line20.2%lowerinterval 19.9 to 20.515.1%12.9 to 17.515.6%in line20.7%lowerinterval 20.4 to 21.0
Diagnosed diabetes among adultsBRFSS 202311.1%9.7 to 12.710.9%in line12.0%similar9.8%8.6 to 11.29.4%in line10.3%similar
High blood pressure among adultsBRFSS 202331.2%28.2 to 34.232.8%in line34.4%similar28.4%25.6 to 31.429.3%in line30.7%similar
High cholesterol among adults who have ever been screenedBRFSS 202337.2%34.0 to 40.439.3%in line37.4%similar33.3%30.0 to 36.434.6%in line32.2%similar
Obesity among adultsBRFSS 202325.4%21.5 to 29.728.9%in line32.8%lowerinterval 32.4 to 33.125.5%21.6 to 29.828.8%in line32.9%lowerinterval 32.5 to 33.2
Stroke among adultsBRFSS 20233.1%2.8 to 3.53.1%in line3.4%similar2.7%2.5 to 3.12.6%in line2.9%similar
Prevention: Mercer County, NJ
MeasureEstimate and interval on a scale of 0 to 100%Estimate95% intervalNJ figure (site aggregate)United States
Cholesterol screening among adultsBRFSS 202388.9%87.2 to 90.589.1%in line87.5%similar87.9%86.0 to 89.787.7%in line85.6%higherinterval 85.3 to 85.8
Colorectal cancer screening among adults aged 45–75 yearsBRFSS 202263.4%58.7 to 67.863.4%in line66.3%similar59.6%54.9 to 64.158.8%in line54.1%higherinterval 53.7 to 54.6
Current lack of health insurance among adults aged 18-64 yearsBRFSS 202311.4%9.3 to 13.611.3%in line11.0%similar11.9%9.7 to 14.311.8%in line11.5%similar
Mammography use among women aged 50-74 yearsBRFSS 202273.1%65.7 to 79.775.7%in line76.5%similar72.9%65.4 to 79.575.2%in line76.0%similar
Taking medicine to control high blood pressure among adults with high blood pressureBRFSS 202376.1%73.1 to 78.777.2%in line77.0%similar57.1%53.0 to 61.058.0%in line57.5%similar
Visited dentist or dental clinic in the past year among adultsBRFSS 202265.4%62.2 to 68.565.9%in line63.9%similar64.9%61.7 to 68.065.4%in line63.4%similar
Visits to doctor for routine checkup within the past year among adultsBRFSS 202378.6%75.5 to 81.378.0%in line77.7%similar77.1%73.8 to 79.976.1%in line75.7%similar
Health risk behaviors: Mercer County, NJ
MeasureEstimate and interval on a scale of 0 to 50%Estimate95% intervalNJ figure (site aggregate)United States
Binge drinking among adultsBRFSS 202314.2%12.0 to 16.515.5%in line15.2%similar15.2%12.9 to 17.616.9%in line16.6%similar
Current cigarette smoking among adultsBRFSS 202310.5%8.6 to 12.610.9%in line11.4%similar10.7%8.7 to 12.811.0%in line11.6%similar
No leisure-time physical activity among adultsBRFSS 202324.4%21.0 to 28.224.8%in line24.5%similar23.9%20.6 to 27.523.9%in line23.7%similar
Short sleep duration among adultsBRFSS 202236.2%31.5 to 41.037.5%in line36.0%similar37.0%32.3 to 41.838.3%in line36.8%similar
Disability: Mercer County, NJ
MeasureEstimate and interval on a scale of 0 to 40%Estimate95% intervalNJ figure (site aggregate)United States
Any disability among adultsBRFSS 202323.0%20.1 to 26.324.8%in line30.0%lowerinterval 29.7 to 30.322.0%19.1 to 25.223.5%in line28.3%lowerinterval 28.0 to 28.7
Cognitive disability among adultsBRFSS 202311.5%10.0 to 13.311.5%in line13.7%lowerinterval 13.4 to 13.911.8%10.2 to 13.712.0%in line14.1%lowerinterval 13.8 to 14.3
Hearing disability among adultsBRFSS 20235.3%4.6 to 6.05.7%in line6.7%lowerinterval 6.6 to 6.94.7%4.1 to 5.34.9%in line5.8%lowerinterval 5.7 to 6.0
Independent living disability among adultsBRFSS 20236.7%5.8 to 7.76.6%in line7.9%similar6.5%5.7 to 7.66.5%in line7.6%similar
Mobility disability among adultsBRFSS 202310.9%9.3 to 12.811.3%in line13.5%lowerinterval 13.3 to 13.79.7%8.3 to 11.49.8%in line11.7%lowerinterval 11.5 to 11.9
Self-care disability among adultsBRFSS 20233.3%2.9 to 3.93.3%in line3.8%similar3.1%2.7 to 3.53.0%in line3.4%similar
Vision disability among adultsBRFSS 20234.8%4.2 to 5.44.7%in line5.5%similar4.5%4.0 to 5.14.4%in line5.2%similar
Health status: Mercer County, NJ
MeasureEstimate and interval on a scale of 0 to 30%Estimate95% intervalNJ figure (site aggregate)United States
Fair or poor self-rated health status among adultsBRFSS 202317.3%15.1 to 20.017.1%in line19.2%similar16.7%14.5 to 19.216.3%in line18.3%similar
Frequent mental distress among adultsBRFSS 202314.5%12.8 to 16.414.7%in line15.6%similar15.2%13.4 to 17.115.6%in line16.3%similar
Frequent physical distress among adultsBRFSS 202311.8%10.3 to 13.412.2%in line12.8%similar11.2%9.8 to 12.711.4%in line12.1%similar

ZIP Codes in Mercer County

ZIP Codes in Mercer County, NJ, in ZIP Code order
ZIP CodeResidentsEstimate95% confidence intervalAgainst Mercer County
ZIP Code 0852029,29123.0%19.2 to 26.9similar
ZIP Code 085254,64922.3%18.9 to 26.1similar
ZIP Code 0853412,95520.7%17.2 to 24.5similar
ZIP Code 0854048,21620.3%17.7 to 23.1similar
ZIP Code 085423,32522.2%18.5 to 26.3similar
ZIP Code 085444,34912.1%9.5 to 14.9lower
ZIP Code 0855021,03415.9%13.1 to 19.0lower
ZIP Code 085603,55322.8%19.0 to 26.9similar
ZIP Code 0856133017.6%14.5 to 21.3lower
ZIP Code 086081,26936.6%31.6 to 41.9higher
ZIP Code 0860914,86735.8%30.7 to 41.1higher
ZIP Code 0861032,64928.2%23.9 to 32.7similar
ZIP Code 0861131,53135.3%30.3 to 40.5higher
ZIP Code 0861837,54433.0%28.3 to 37.9similar
ZIP Code 0861923,30123.7%19.8 to 28.0similar
ZIP Code 0862014,63325.6%22.2 to 29.1similar
ZIP Code 0862810,31024.9%20.8 to 29.2similar
ZIP Code 0862913,35931.7%27.0 to 36.7similar
ZIP Code 0863823,54831.4%26.7 to 36.2similar
ZIP Code 0864831,95521.3%17.7 to 25.2similar
ZIP Code 0869019,47022.6%18.8 to 26.7similar
ZIP Code 0869116,86620.9%17.4 to 24.8similar

The dashed line in each drawing is Mercer County. The words are "higher" or "lower" when the two 95% confidence intervals do not overlap, and "similar" when they overlap. The table is in name order. The intervals of many rows overlap, so the table gives no rank.

A ZIP Code is in the county that holds the largest share of its land. A ZIP Code that is in two counties shows one time. Download the ZIP Codes of Mercer County as a CSV file, with all measures.

Cities and places in Mercer County

Places in Mercer County, NJ, in name order
PlaceResidentsEstimate95% confidence intervalAgainst Mercer County
Groveville3,10624.7%20.5 to 29.0similar
Hamilton Square12,67922.5%18.6 to 26.4similar
Hightstown5,90024.0%20.0 to 28.3similar
Hopewell1,91821.7%17.8 to 25.7similar
Lawrenceville3,75121.7%18.0 to 25.8similar
Mercerville13,44723.3%19.5 to 27.5similar
Pennington2,80221.1%17.4 to 25.0similar
Princeton30,68118.3%15.2 to 21.8similar
Princeton Junction2,47518.2%15.0 to 21.7similar
Robbinsville Center3,16420.5%17.0 to 24.2similar
The College of New Jersey3,70117.1%13.6 to 20.8lower
Titusville63322.9%18.9 to 27.2similar
Trenton90,87136.1%31.1 to 41.3higher
Twin Rivers7,78725.2%21.2 to 29.5similar
Washington Crossing37123.2%19.3 to 27.6similar
White Horse9,79124.8%20.8 to 29.1similar
Windsor33017.6%14.5 to 21.3lower
Yardville6,96525.9%21.6 to 30.4similar

The dashed line in each drawing is Mercer County. The words are "higher" or "lower" when the two 95% confidence intervals do not overlap, and "similar" when they overlap. The table is in name order. The intervals of many rows overlap, so the table gives no rank.

Estimates in earlier PLACES releases

The current modeling procedure does not support using the estimates to track changes at the local level over time.

Centers for Disease Control and Prevention, PLACES Frequently Asked Questions (page dated 11 Dec 2025, read on 2 Oct 2026)

The table lists what each PLACES release published for Mercer County, NJ, for 12 of the 40 measures.

Mercer County, NJ: crude prevalence and 95% confidence interval in each PLACES release
Measure2022 release2023 release2024 release2025 release
COPD5.3%4.6 to 6.25.3%4.3 to 6.45.1%4.6 to 5.84.9%4.1 to 5.9
Coronary Heart Disease5.8%5.3 to 6.35.3%4.6 to 6.16.0%5.4 to 6.75.4%4.8 to 6.1
Current Asthma9.5%9.2 to 9.99.4%8.3 to 10.69.4%8.3 to 10.69.0%7.9 to 10.1
Depression16.6%15.8 to 17.418.8%15.9 to 21.916.9%14.4 to 19.514.8%12.7 to 17.1
Diabetes9.9%9.3 to 10.510.5%8.9 to 12.010.0%8.7 to 11.511.1%9.7 to 12.7
High Blood Pressurenot published31.0%27.7 to 34.431.2%28.0 to 34.731.2%28.2 to 34.2
Obesity28.1%27.1 to 29.023.4%19.3 to 27.830.6%25.8 to 35.625.4%21.5 to 29.7
Health Insurance14.5%12.7 to 16.411.4%9.2 to 13.88.3%7.4 to 9.211.4%9.3 to 13.6
Binge Drinking14.6%14.2 to 15.014.3%11.9 to 16.815.5%12.8 to 18.314.2%12.0 to 16.5
Current Cigarette Smoking11.8%10.1 to 13.513.0%10.4 to 15.910.3%9.0 to 11.810.5%8.6 to 12.6
Physical Inactivity20.6%18.8 to 22.723.5%19.6 to 27.723.1%20.0 to 26.524.4%21.0 to 28.2
General Health11.8%10.5 to 13.314.8%12.6 to 17.415.7%14.0 to 17.517.3%15.1 to 20.0

Official sources

The links open the pages of the agencies in a new tab.

Cite this page

Health by ZIP. Mercer County, NJ: CDC PLACES estimates, 2025 release. Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health. CDC updated the data on 4 Dec 2025. https://healthbyzip.com/county/nj/mercer-county/

The address of this page stays the same. CDC's own citation is at the foot of the page.

Where the figures come from

Source: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, 2025 release. CDC updated the data on . The page shows the 2022, 2023, 2024 releases as a record. The data are a US government work in the public domain. Data set on data.cdc.gov. The boundaries and the links between ZIP Codes, counties and places come from the US Census Bureau. Percentages have one decimal, as CDC publishes them. A state figure is a site aggregate: the site computes it. The site corrects an error of its own processing at the next build. See corrections.

Questions about Mercer County, NJ

How does the obesity estimate of Mercer County, NJ compare with New Jersey?

The New Jersey figure is 28.9% (site aggregate).

It has no confidence interval.

The New Jersey figure is inside the interval of Mercer County, NJ. The estimate is in line with it.

How does the obesity estimate of Mercer County, NJ compare with the nation?

The US estimate is 32.8%.

The 95% confidence interval is 32.4% to 33.1%.

The two intervals do not overlap. The estimate for Mercer County, NJ is lower.

What does CDC estimate for diagnosed diabetes in Mercer County, NJ?

CDC estimates that 11.1% of the adults of Mercer County, NJ have diagnosed diabetes.

The 95% confidence interval is 9.7% to 12.7%.

PLACES 2025, BRFSS 2023.

For how many measures is Mercer County, NJ above or below the New Jersey figure?

Mercer County, NJ and the New Jersey figure both have a value for 40 measures.

The estimate for Mercer County, NJ is above the New Jersey figure for 0 measures.

It is below the New Jersey figure for 0 measures.

It is in line with the New Jersey figure for 40 measures.