Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate)
Prince George's County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 24 counties in 2014, at 16.8%. Howard County had the lowest, at 6.3%. The median was 10.1% and the figure for Maryland was 11%. Source: the U.S. Census Bureau.
Map of counties, 2014
- Under 7.6
- 7.6 to 8.9
- 8.9 to 11
- 11 to 12
- 12 and over
All counties, 2014
Full ranking
| Rank | Counties | 2014 (%) | Change on 2013 |
|---|---|---|---|
| 1 | Prince George's County | 16.8 | -3.6 pts |
| 2 | Wicomico County | 13.2 | -4.9 pts |
| 3 | Caroline County | 13 | -4.4 pts |
| 3 | Somerset County | 13 | -5.4 pts |
| 5 | Montgomery County | 12.6 | -2.7 pts |
| 6 | Baltimore city | 12 | -3.7 pts |
| 6 | Dorchester County | 12 | -4.1 pts |
| 6 | Kent County | 12 | -3.9 pts |
| 9 | Worcester County | 11.9 | -4.5 pts |
| 10 | Talbot County | 11.3 | -3.7 pts |
| 11 | Garrett County | 11 | -4.4 pts |
| 12 | Baltimore County | 10.2 | -3.5 pts |
| 13 | Washington County | 10 | -3.7 pts |
| 14 | Allegany County | 9.1 | -4.3 pts |
| 15 | Cecil County | 8.8 | -3.7 pts |
| 16 | Frederick County | 8.1 | -3.1 pts |
| 17 | Anne Arundel County | 8 | -2.3 pts |
| 17 | Queen Anne's County | 8 | -4 pts |
| 19 | St. Mary's County | 7.8 | -2.8 pts |
| 20 | Charles County | 7.3 | -2.8 pts |
| 21 | Harford County | 6.9 | -2.8 pts |
| 22 | Calvert County | 6.8 | -2.8 pts |
| 23 | Carroll County | 6.5 | -3.4 pts |
| 24 | Howard County | 6.3 | -2.9 pts |
Other periods
About this ranking
People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.
A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.Citation styles
APA 7
U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate), 2014) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip
MLA 9
Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate), 2014. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maryland-counties?period=2014. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate), 2014. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maryland-counties?period=2014.
Harvard
U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate), 2014 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/maryland-counties?period=2014 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_maryland_by_2014,
author = {{U.S. Census Bureau}},
title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate), 2014}},
year = {2026},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maryland-counties?period=2014. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate), 2014
PY - 2026
DA - 2026/08/06
PB - U.S. Census Bureau
DB - Invokely
UR - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip
L2 - https://invokely.ai/rankings/uninsured-rate-ages-18-64/maryland-counties?period=2014
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maryland-counties?period=2014.
N1 - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.
ER -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Maryland by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_18_64","level":"province","within":"Maryland","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_18_64&level=province&within=Maryland&limit=10Questions
Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?
Prince George's County, with 16.8% in 2014, according to the U.S. Census Bureau.
Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?
Howard County, with 6.3% in 2014.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.