ZIP Code 21840 health estimates
Nanticoke, MD. Wicomico County, Maryland. 371 residents in the 2020 Census, 314 adults.
A ZIP Code on this page is a Census ZIP Code Tabulation Area (ZCTA). The Census Bureau makes ZCTAs to approximate the areas of postal ZIP Codes. A ZCTA and a postal ZIP Code can differ.
This page is not in the search index. It has been out of the index since 1 Oct 2026. Fewer than 500 residents live in the area, so the intervals are wide.
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 38.4% of the adults of ZIP Code 21840 have obesity.
The 95% confidence interval is 34.1% to 42.9%.
PLACES 2025, BRFSS 2023.
Report card: 40 measures by CDC category
Crude prevalence: the estimated share of all adults. CDC publishes no age-adjusted estimate for a ZIP Code area.
- 95% confidence interval
- estimate
- Wicomico County
- Maryland figure (site aggregate), no interval
- US estimate
"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 (12)
- Prevention (7)
- Health risk behaviors (4)
- Disability (7)
- Health status (3)
- Health-related social needs (7)
| Measure | Estimate and interval on a scale of 0 to 60% | Estimate | 95% interval | Wicomico County | MD figure (site aggregate) | United States |
|---|---|---|---|---|---|---|
| All teeth lost among adults aged ≥65 yearsBRFSS 2022 | 15.1% | 12.6 to 17.8 | 12.7%similar | 9.9%above | 12.2%similar | |
| Arthritis among adultsBRFSS 2023 | 39.5% | 36.4 to 42.6 | 28.1%higherinterval 25.8 to 30.4 | 25.8%above | 25.4%higherinterval 25.1 to 25.6 | |
| Cancer (non-skin) or melanoma among adultsBRFSS 2023 | 13.1% | 12.0 to 14.3 | 7.8%higherinterval 7.1 to 8.5 | 7.6%above | 7.9%higherinterval 7.8 to 8.1 | |
| Chronic obstructive pulmonary disease among adultsBRFSS 2023 | 9.3% | 7.8 to 10.9 | 7.4%similar | 5.9%above | 6.2%higherinterval 6.1 to 6.3 | |
| Coronary heart disease among adultsBRFSS 2023 | 9.2% | 8.1 to 10.4 | 6.5%higherinterval 5.7 to 7.3 | 5.8%above | 6.4%higherinterval 6.2 to 6.5 | |
| Current asthma among adultsBRFSS 2023 | 10.3% | 9.1 to 11.5 | 11.1%similar | 10.6%in line | 9.8%similar | |
| Depression among adultsBRFSS 2023 | 18.8% | 16.5 to 21.3 | 21.7%similar | 19.4%in line | 20.2%similar | |
| Diagnosed diabetes among adultsBRFSS 2023 | 15.5% | 13.6 to 17.5 | 12.6%similar | 12.5%above | 12.0%higherinterval 11.8 to 12.2 | |
| High blood pressure among adultsBRFSS 2023 | 46.4% | 43.0 to 49.6 | 36.7%higherinterval 33.9 to 39.6 | 36.8%above | 34.4%higherinterval 34.0 to 34.7 | |
| High cholesterol among adults who have ever been screenedBRFSS 2023 | 49.1% | 45.9 to 52.5 | 39.1%higherinterval 36.3 to 41.9 | 38.1%above | 37.4%higherinterval 37.1 to 37.8 | |
| Obesity among adultsBRFSS 2023 | 38.4% | 34.1 to 42.9 | 39.6%similar | 35.1%in line | 32.8%higherinterval 32.4 to 33.1 | |
| Stroke among adultsBRFSS 2023 | 4.9% | 4.3 to 5.5 | 3.7%higherinterval 3.3 to 4.2 | 3.4%above | 3.4%higherinterval 3.3 to 3.5 |
| Measure | Estimate and interval on a scale of 0 to 100% | Estimate | 95% interval | Wicomico County | MD figure (site aggregate) | United States |
|---|---|---|---|---|---|---|
| Cholesterol screening among adultsBRFSS 2023 | 93.4% | 92.4 to 94.4 | 87.4%higherinterval 85.3 to 89.3 | 89.6%above | 87.5%higherinterval 87.3 to 87.8 | |
| Colorectal cancer screening among adults aged 45–75 yearsBRFSS 2022 | 76.6% | 73.3 to 79.6 | 69.9%higherinterval 66.0 to 72.9 | 68.2%above | 66.3%higherinterval 65.9 to 66.8 | |
| Current lack of health insurance among adults aged 18-64 yearsBRFSS 2023 | 6.6% | 5.2 to 8.5 | 9.1%similar | 8.7%below | 11.0%lowerinterval 10.7 to 11.3 | |
| Mammography use among women aged 50-74 yearsBRFSS 2022 | 80.2% | 75.3 to 84.6 | 77.5%similar | 80.7%in line | 76.5%similar | |
| Taking medicine to control high blood pressure among adults with high blood pressureBRFSS 2023 | 85.6% | 83.4 to 87.6 | 78.7%higherinterval 76.4 to 80.8 | 76.6%above | 77.0%higherinterval 76.5 to 77.5 | |
| Visited dentist or dental clinic in the past year among adultsBRFSS 2022 | 61.6% | 58.6 to 64.5 | 57.4%similar | 64.4%in line | 63.9%similar | |
| Visits to doctor for routine checkup within the past year among adultsBRFSS 2023 | 85.6% | 83.7 to 87.6 | 81.0%higherinterval 78.5 to 83.5 | 79.2%above | 77.7%higherinterval 77.4 to 78.0 |
| Measure | Estimate and interval on a scale of 0 to 40% | Estimate | 95% interval | Wicomico County | MD figure (site aggregate) | United States |
|---|---|---|---|---|---|---|
| Binge drinking among adultsBRFSS 2023 | 12.0% | 10.3 to 14.0 | 14.4%similar | 14.1%below | 15.2%lowerinterval 15.0 to 15.5 | |
| Current cigarette smoking among adultsBRFSS 2023 | 12.6% | 10.4 to 15.0 | 13.4%similar | 10.9%in line | 11.4%similar | |
| No leisure-time physical activity among adultsBRFSS 2023 | 27.7% | 23.6 to 31.8 | 28.0%similar | 23.6%in line | 24.5%similar | |
| Short sleep duration among adultsBRFSS 2022 | 31.6% | 27.9 to 35.3 | 35.3%similar | 37.7%below | 36.0%lowerinterval 35.7 to 36.3 |
| Measure | Estimate and interval on a scale of 0 to 40% | Estimate | 95% interval | Wicomico County | MD figure (site aggregate) | United States |
|---|---|---|---|---|---|---|
| Any disability among adultsBRFSS 2023 | 29.9% | 26.2 to 33.6 | 28.8%similar | 26.4%in line | 30.0%similar | |
| Cognitive disability among adultsBRFSS 2023 | 11.2% | 9.6 to 12.9 | 14.7%similar | 12.2%in line | 13.7%lowerinterval 13.4 to 13.9 | |
| Hearing disability among adultsBRFSS 2023 | 8.6% | 7.5 to 9.7 | 6.1%higherinterval 5.4 to 6.9 | 5.6%above | 6.7%higherinterval 6.6 to 6.9 | |
| Independent living disability among adultsBRFSS 2023 | 7.6% | 6.4 to 9.0 | 8.6%similar | 7.0%in line | 7.9%similar | |
| Mobility disability among adultsBRFSS 2023 | 17.2% | 14.7 to 20.0 | 13.9%similar | 12.4%above | 13.5%higherinterval 13.3 to 13.7 | |
| Self-care disability among adultsBRFSS 2023 | 4.2% | 3.6 to 4.8 | 4.0%similar | 3.5%above | 3.8%similar | |
| Vision disability among adultsBRFSS 2023 | 4.9% | 4.2 to 5.7 | 5.2%similar | 4.5%in line | 5.5%similar |
| Measure | Estimate and interval on a scale of 0 to 30% | Estimate | 95% interval | Wicomico County | MD figure (site aggregate) | United States |
|---|---|---|---|---|---|---|
| Fair or poor self-rated health status among adultsBRFSS 2023 | 20.5% | 17.5 to 23.7 | 20.7%similar | 17.9%in line | 19.2%similar | |
| Frequent mental distress among adultsBRFSS 2023 | 13.1% | 11.6 to 14.9 | 17.6%lowerinterval 15.4 to 19.7 | 15.0%below | 15.6%lowerinterval 15.3 to 15.8 | |
| Frequent physical distress among adultsBRFSS 2023 | 14.5% | 12.7 to 16.5 | 13.1%similar | 12.0%above | 12.8%similar |
| Measure | Estimate and interval on a scale of 0 to 40% | Estimate | 95% interval | Wicomico County | MD figure (site aggregate) | United States |
|---|---|---|---|---|---|---|
| Food insecurity in the past 12 months among adultsBRFSS 2023 | 10.4% | 8.5 to 12.4 | 16.7%lowerinterval 13.8 to 19.6 | 15.4%below | 14.7%lowerinterval 14.4 to 15.0 | |
| Housing insecurity in the past 12 months among adultsBRFSS 2023 | 8.1% | 6.8 to 9.5 | 13.4%lowerinterval 11.2 to 15.4 | 13.5%below | 11.7%lowerinterval 11.5 to 12.0 | |
| Lack of reliable transportation in the past 12 months among adultsBRFSS 2023 | 5.6% | 4.8 to 6.5 | 9.0%lowerinterval 7.6 to 10.4 | 7.8%below | 7.7%lowerinterval 7.5 to 7.9 | |
| Lack of social and emotional support among adultsBRFSS 2023 | 21.3% | 18.5 to 24.2 | 24.5%similar | 24.2%in line | 23.3%similar | |
| Loneliness among adultsBRFSS 2023 | 29.6% | 26.0 to 33.2 | 35.1%similar | 34.3%below | 32.0%similar | |
| Received food stamps in the past 12 months among adultsBRFSS 2023 | 8.6% | 6.9 to 10.4 | 14.6%lowerinterval 11.9 to 17.2 | 11.8%below | 11.2%lowerinterval 10.9 to 11.4 | |
| Utility services shut-off threat in the past 12 months among adultsBRFSS 2023 | 5.6% | 4.8 to 6.5 | 9.1%lowerinterval 7.8 to 10.5 | 8.4%below | 7.4%lowerinterval 7.2 to 7.6 |
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 ZIP Code 21840, for 12 of the 40 measures.
| Measure | 2022 release | 2023 release | 2024 release | 2025 release |
|---|---|---|---|---|
| COPD | 7.1%6.0 to 8.2 | 7.2%6.1 to 8.3 | 10.6%9.6 to 11.7 | 9.3%7.8 to 10.9 |
| Coronary Heart Disease | 7.7%6.9 to 8.4 | 7.4%6.5 to 8.3 | 10.6%9.6 to 11.6 | 9.2%8.1 to 10.4 |
| Current Asthma | 9.6%9.2 to 10.1 | 9.9%8.8 to 11.1 | 11.0%9.8 to 12.3 | 10.3%9.1 to 11.5 |
| Depression | 17.6%16.7 to 18.6 | 19.5%17.0 to 22.3 | 20.5%18.0 to 23.0 | 18.8%16.5 to 21.3 |
| Diabetes | 12.4%11.5 to 13.3 | 12.4%10.8 to 14.0 | 17.2%15.3 to 19.2 | 15.5%13.6 to 17.5 |
| High Blood Pressure | 43.0%41.5 to 44.4 | 41.5%38.3 to 44.9 | 45.8%42.4 to 49.5 | 46.4%43.0 to 49.6 |
| Obesity | 34.8%33.8 to 35.8 | 34.9%30.6 to 39.5 | 34.6%30.4 to 38.8 | 38.4%34.1 to 42.9 |
| Health Insurance | 9.5%7.8 to 11.3 | 6.6%5.4 to 8.1 | 6.9%5.4 to 8.8 | 6.6%5.2 to 8.5 |
| Binge Drinking | 14.1%13.9 to 14.3 | 14.1%12.0 to 16.5 | 13.3%11.2 to 15.5 | 12.0%10.3 to 14.0 |
| Current Cigarette Smoking | 14.2%12.5 to 15.9 | 14.3%11.9 to 16.8 | 15.4%13.7 to 17.2 | 12.6%10.4 to 15.0 |
| Physical Inactivity | 20.9%19.3 to 22.6 | 24.7%21.4 to 28.4 | 26.5%23.6 to 29.5 | 27.7%23.6 to 31.8 |
| General Health | 12.9%11.3 to 14.6 | 15.6%13.6 to 17.8 | 20.6%18.7 to 22.5 | 20.5%17.5 to 23.7 |
The 2022 and 2023 releases use the Census areas of 2010. The releases from 2024 use the Census areas of 2020. One code can cover a different area in the two sets.
Nearby ZIP Codes
These links are for navigation. The miles are the distance between the internal points that the Census Bureau gives for the two areas.
- ZIP Code 21821Dames Quarter, MD5.9 miles
- ZIP Code 21856MD8 miles
- ZIP Code 21869MD9.6 miles
- ZIP Code 21853Mount Vernon, MD10.2 miles
- ZIP Code 21890MD12.5 miles
- ZIP Code 21871Fairmount, MD13 miles
- ZIP Code 21822Eden, MD13.3 miles
- ZIP Code 21830MD13.6 miles
- ZIP Code 21801Salisbury, MD13.9 miles
- ZIP Code 21826Fruitland, MD15.5 miles
- Wicomico County 16 ZIP Codes
- Nanticoke CDP place
- Nanticoke Acres CDP place
- Jesterville CDP place
- Maryland 462 ZIP Codes
- Compare ZIP Code 21840 with another place
Official sources
- PLACES: Local Data for Better HealthCenters for Disease Control and Prevention. The PLACES project of CDC. Checked .
- PLACES Data PortalCenters for Disease Control and Prevention. CDC page about the data portal and the data sets. Checked .
- PLACES ZCTA data, 2025 releaseCenters for Disease Control and Prevention. The data set of CDC for this kind of area. Checked .
- ZIP Code Tabulation AreasUS Census Bureau. What a ZIP Code Tabulation Area is. Checked .
- Maryland Department of HealthThe health department of the state. Checked .
The links open the pages of the agencies in a new tab.
Cite this page
Health by ZIP. ZIP Code 21840: 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/zip/21840/
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 shares of a ZIP Code in a county or a place are shares of land area from the Census 2020 relationship files. The site corrects an error of its own processing at the next build. See corrections.
Questions about ZIP Code 21840
- How does the obesity estimate of ZIP Code 21840 compare with Wicomico County?
The estimate for Wicomico County is 39.6%.
The 95% confidence interval is 35.3% to 44.1%.
The two intervals overlap. The estimate for ZIP Code 21840 is similar.
- How does the obesity estimate of ZIP Code 21840 compare with Maryland and the nation?
The Maryland figure is 35.1% (site aggregate).
It has no confidence interval.
The Maryland figure is inside the interval of ZIP Code 21840. The estimate is in line with it.
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 ZIP Code 21840 is higher.
- What does CDC estimate for diagnosed diabetes in ZIP Code 21840?
CDC estimates that 15.5% of the adults of ZIP Code 21840 have diagnosed diabetes.
The 95% confidence interval is 13.6% to 17.5%.
PLACES 2025, BRFSS 2023.
- For how many measures is ZIP Code 21840 higher or lower than Wicomico County?
ZIP Code 21840 and Wicomico County both have an estimate for 40 measures.
The estimate for ZIP Code 21840 is higher for 11 measures.
It is lower for 6 measures.
It is similar for 23 measures.