Alcorn County area

Population and density of Alcorn County

The Census Bureau estimates that 34,569 people lived in Alcorn County on July 1, 2025. That ranks #1,354 of 3,222 county equivalents nationally and #22 of 82 in Mississippi. Since the April 1, 2020 estimates base of 34,742, the population has declined by 173 (−0.5%), compared with −0.2% for Mississippi as a whole.

With 400 square miles of land, that is 86 people per square mile (33 per km²), placing Alcorn County #1,102 nationally for density and #17 in Mississippi. The median county equivalent has 47 people per square mile; the Mississippi median is 43. Put another way, there are about 7.4 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 Alcorn County

5 incorporated places lie at least partly in Alcorn County. Together they are home to 17,197 people (49.7%); the other 17,372 (50.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Corinth city, with 14,345 residents in the county.

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

Metropolitan area

Alcorn County is a central county of the Corinth, MS Micropolitan Statistical Area. Alcorn County is the area’s only county equivalent, so the micro area has the same 400 square miles of land. By combined land it ranks #492 of 542 micropolitan areas, and #396 by population. It belongs to the Tupelo-Corinth, MS Combined Statistical Area.

ZIP codes

5 ZIP Code Tabulation Areas have land in Alcorn County; 3 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3868338833388343884638865

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 Alcorn County

Alcorn County shares a land border with 6 county equivalents, including 3 in Tennessee. Each of them has more land than Alcorn County. The largest neighbor is Hardeman County (667.8 mi²) and the smallest is Prentiss County (415 mi²). Together with its neighbors, Alcorn County forms a block of 3,505.3 mi² of land, of which it holds 11.4%.

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

Alcorn County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.6 times as much. Mississippi’s county land could hold about 117 areas the size of Alcorn County.

Another way to picture it: the same land area would fill a square about 20 miles (32.2 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 Alcorn County?

Alcorn County has more land than 693 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 Alcorn County at #2,600 nationally by total area, 71 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 0.3%, compared with a national county-equivalent median of 1.2% — 0.8 percentage points lower. 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 Alcorn 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.