NC · GEOID 37063

Durham County area

Durham County, North Carolina covers 297.9 square miles: 287.6 square miles of land and 10.3 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area287.6 mi²
Water area10.3 mi²
Total area297.9 mi²
National land rank#2827

County outline

Generalized outline of Durham County, North Carolina
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Durham County is located

Durham County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 96.5% of Durham County’s measured area and water for 3.5%. Its combined area converts to 771.5 square kilometers or approximately 190,632 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land287.567744.795184,042.9
Water10.29626.6676,589.4
Total297.863771.462190,632.3

How Durham County compares

By original Census land area, Durham County ranks #84 of 100 in North Carolina and #2827 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.625 times the North Carolina county-equivalent median of 460.3 square miles. It accounts for 0.6% of the combined county land area in the state.

See the complete North Carolina ranking · What counts as a county equivalent?

What stands out about Durham County?

Durham County has more land than 395 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Durham County287.6 mi²
North Carolina median460.3 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Durham County at #2,852 nationally by total area, 25 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 3.5%, compared with a national county-equivalent median of 1.2% — 2.3 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Durham County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2826Stark County, Illinois288.1Compare
#2827Durham County, North Carolina287.6This county
#2828Henry County, Kentucky286.3Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 36.033828, -78.878125. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 744,793,969 m²; AWATER: 26,666,533 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How many acres of land are in Durham County?

The land measurement converts to approximately 184,043 acres. Including water, total area is approximately 190,632 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset