Grayson County area

Population and density of Grayson County

The Census Bureau estimates that 153,613 people lived in Grayson County on July 1, 2025. That ranks #462 of 3,222 county equivalents nationally and #33 of 254 in Texas. Since the April 1, 2020 estimates base of 135,601, the population has grown by 18,012 (+13.3%), compared with +8.8% for Texas as a whole.

With 932.8 square miles of land, that is 165 people per square mile (64 per km²), placing Grayson County #728 nationally for density and #38 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 3.9 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Grayson County

18 incorporated places lie at least partly in Grayson County. Together they are home to 110,458 people (71.9%); the other 43,155 (28.1%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Sherman city, with 52,417 residents in the county. Among places with at least 1,000 residents in 2020, Van Alstyne city grew fastest since then (+82.2%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Grayson County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Grayson County is a central county of the Sherman-Denison, TX Metropolitan Statistical Area. Grayson County is the area’s only county equivalent, so the metro area has the same 932.8 square miles of land. By combined land it ranks #288 of 393 metropolitan areas, and #291 by population. It belongs to the Dallas-Fort Worth, TX-OK Combined Statistical Area.

ZIP codes

21 ZIP Code Tabulation Areas have land in Grayson County; 17 of them have most of their land inside the county, and the others mainly cover neighboring areas.

750207502175058750767509075092754147545975479754897549075491754957623376240762457625876264762687627176273

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Grayson County

Grayson County shares a land border with 7 county equivalents, including 3 in Oklahoma. It has more land than every one of them. The largest neighbor is Bryan County (904.3 mi²) and the smallest is Marshall County (371.5 mi²). Together with its neighbors, Grayson County forms a block of 6,195 mi² of land, of which it holds 15.1%.

How big is Grayson County compared with U.S. states?

Grayson County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.1 times as much. Texas’s county land could hold about 280 areas the size of Grayson County.

Another way to picture it: the same land area would fill a square about 30.5 miles (49.2 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Grayson County?

Grayson County has more land than 2,453 of the other 3,221 county equivalents in the dataset.

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 Grayson County at #805 nationally by total area, 36 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 4.7%, compared with a national county-equivalent median of 1.2% — 3.6 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 Grayson County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

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.