Data / Rankings / Uninsured rate, under 19 (US model-based estimate) / Counties in Maryland

Counties in Maryland by uninsured rate, under 19 (US model-based estimate)

Kent County had the highest uninsured rate, under 19 (US model-based estimate) of 24 counties in 2021, at 6.6%. Anne Arundel County had the lowest, at 3.1%. The median was 4.1% and the figure for Maryland was 4.1%. Source: the U.S. Census Bureau.

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Highest6.6Kent County
Lowest3.1Anne Arundel County
Median4.124 counties
Maryland4.1History

Map of counties, 2021

Allegany County: 3.1 %Anne Arundel County: 3.1 %Baltimore County: 4.2 %Calvert County: 3.3 %Caroline County: 5.7 %Carroll County: 3.3 %Cecil County: 4.5 %Charles County: 3.5 %Dorchester County: 4.9 %Frederick County: 3.9 %Garrett County: 4.8 %Harford County: 3.9 %Howard County: 3.3 %Kent County: 6.6 %Montgomery County: 3.6 %Prince George's County: 5.6 %Queen Anne's County: 4.4 %St. Mary's County: 4 %Somerset County: 3.5 %Talbot County: 5.6 %Washington County: 4.4 %Wicomico County: 5.9 %Worcester County: 4.9 %Baltimore city: 3.6 %
  • Under 3.4
  • 3.4 to 3.9
  • 3.9 to 4.4
  • 4.4 to 5.2
  • 5.2 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Kent County: 6.6 %Kent County6.6Wicomico County: 5.9 %Wicomico County5.9Caroline County: 5.7 %Caroline County5.7Prince George's County: 5.6 %Prince George's County5.6Talbot County: 5.6 %Talbot County5.6Dorchester County: 4.9 %Dorchester County4.9Worcester County: 4.9 %Worcester County4.9Garrett County: 4.8 %Garrett County4.8Cecil County: 4.5 %Cecil County4.5Queen Anne's County: 4.4 %Queen Anne's County4.4Washington County: 4.4 %Washington County4.4Baltimore County: 4.2 %Baltimore County4.2St. Mary's County: 4 %St. Mary's County4Frederick County: 3.9 %Frederick County3.9Harford County: 3.9 %Harford County3.9Baltimore city: 3.6 %Baltimore city3.6Montgomery County: 3.6 %Montgomery County3.6Charles County: 3.5 %Charles County3.5Somerset County: 3.5 %Somerset County3.5Calvert County: 3.3 %Calvert County3.3Carroll County: 3.3 %Carroll County3.3Howard County: 3.3 %Howard County3.3Allegany County: 3.1 %Allegany County3.1Anne Arundel County: 3.1 %Anne Arundel County3.1Kent County: 6.6 %Kent County6.6Wicomico County: 5.9 %Wicomico County5.9Caroline County: 5.7 %Caroline County5.7Prince George's County: 5.6 %Prince George's County5.6Talbot County: 5.6 %Talbot County5.6Dorchester County: 4.9 %Dorchester County4.9Worcester County: 4.9 %Worcester County4.9Garrett County: 4.8 %Garrett County4.8Cecil County: 4.5 %Cecil County4.5Queen Anne's County: 4.4 %Queen Anne's County4.4Washington County: 4.4 %Washington County4.4Baltimore County: 4.2 %Baltimore County4.2St. Mary's County: 4 %St. Mary's County4Frederick County: 3.9 %Frederick County3.9Harford County: 3.9 %Harford County3.9Baltimore city: 3.6 %Baltimore city3.6Montgomery County: 3.6 %Montgomery County3.6Charles County: 3.5 %Charles County3.5Somerset County: 3.5 %Somerset County3.5Calvert County: 3.3 %Calvert County3.3Carroll County: 3.3 %Carroll County3.3Howard County: 3.3 %Howard County3.3Allegany County: 3.1 %Allegany County3.1Anne Arundel County: 3.1 %Anne Arundel County3.1
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Kent County6.6+1.3 pts
2Wicomico County5.9+1.8 pts
3Caroline County5.7+0.3 pts
4Prince George's County5.6+0.6 pts
4Talbot County5.6+1 pts
6Dorchester County4.9+1.3 pts
6Worcester County4.9+0.5 pts
8Garrett County4.8+0.6 pts
9Cecil County4.5+0.3 pts
10Queen Anne's County4.4+1.2 pts
10Washington County4.4+1.3 pts
12Baltimore County4.2+0.3 pts
13St. Mary's County4+0.6 pts
14Frederick County3.9+1.1 pts
14Harford County3.9+0.8 pts
16Baltimore city3.6+1.4 pts
16Montgomery County3.6+0.4 pts
18Charles County3.5+0.3 pts
18Somerset County3.5+0.7 pts
20Calvert County3.3+0.6 pts
20Carroll County3.3+0.2 pts
20Howard County3.3+0.9 pts
23Allegany County3.1+0.3 pts
23Anne Arundel County3.1+0.1 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. 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. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties (Counties in Maryland by uninsured rate, under 19 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Maryland by uninsured rate, under 19 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maryland-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Counties in Maryland by uninsured rate, under 19 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maryland-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Maryland by uninsured rate, under 19 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/maryland-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maryland_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Maryland by uninsured rate, under 19 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Maryland by uninsured rate, under 19 (US model-based estimate), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/maryland-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maryland-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Kent County, with 6.6% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Anne Arundel County, with 3.1% in 2021.

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, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in Maryland: more rankings