County Maps US

Accomack County, Virginia

A county in Virginia, ranked 52 of 133 by population.

CountyFIPS 51001

Within Virginia
Accomack County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Accomac, the county seat, located via the 2025 Census Gazetteer.

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Population
33,859
+459 (+1.4%) since 2020
Land area
449.3
square miles. A further 65.7% of the total area is water
Population density
75.4
people per square mile, computed rather than published
County seat
Accomac
Seat of county government.
Established
1663
362 years ago
Largest city
Chincoteague town
Population 3,309.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Accomack County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Accomack County, Virginia from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 736 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Accomack County ranks

Position among the 133 counties and independent cities of Virginia, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn VirginiaNationally
Population33,85952nd of 1331,348th of 3,144
Land area449.3 sq mi36th of 1332,272nd of 3,144
Population density75.4 per sq mi84th of 1331,128th of 3,144
Median household income$58,99394th of 1332,170th of 3,143

Full data for Accomack County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population33,859Vintage 2025 Population Estimates
Population in 202033,400Vintage 2025 Population Estimates
2020 estimates base?33,423Vintage 2025 Population Estimates
Land area449.3 sq mi2025 Gazetteer Files
Water area860.7 sq mi2025 Gazetteer Files
Total area1,310 sq mi2025 Gazetteer Files
Population density?75.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$58,993American Community Survey 2020-2024 5-Year Estimates
Median home value$204,300American Community Survey 2020-2024 5-Year Estimates
Median age47.6American Community Survey 2020-2024 5-Year Estimates
Households14,446American Community Survey 2020-2024 5-Year Estimates
Housing units22,052American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-113
373 births, 486 deaths
Net migration
+226
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 7 areas bordering Accomack County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Somerset CountyMaryland42 mi24,973
Northampton CountyVirginia40 mi11,879
Worcester CountyMaryland25 mi54,459
Northumberland CountyVirginia15 mi12,557
Lancaster CountyVirginia6.1 mi10,995
Middlesex CountyVirginia3.1 mi10,841
Mathews CountyVirginiaa single point8,529

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 133 counties and independent cities of Virginia

Open the interactive Virginia county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.