Calhoun County area

Calhoun County, Alabama covers 612.3 square miles: 605.9 square miles of land and 6.381 square miles of water. Its county seat is Anniston. An estimated 115,834 people lived there in 2025.

Official Census measurements · GEOID 010152026 Gazetteer · retrieved September 27, 2026
Land area605.9 mi²
Water area6.381 mi²
Population (2025)115,834
People per mi²191

County outline

Generalized outline of Calhoun County, Alabama
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 Calhoun County is located

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

Area breakdown

Land accounts for 99% of Calhoun County’s measured area and water for 1%. Its combined area converts to 1,585.8 square kilometers or approximately 391,855 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land605.8931,569.256387,771.5
Water6.38116.5274,083.8
Total612.2741,585.782391,855.4

How Calhoun County compares

By original Census land area, Calhoun County ranks #51 of 67 in Alabama and #1606 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.902 times the Alabama county-equivalent median of 672.1 square miles. It accounts for 1.2% of the combined county land area in the state.

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

Population and density of Calhoun County

The Census Bureau estimates that 115,834 people lived in Calhoun County on July 1, 2025. That ranks #562 of 3,222 county equivalents nationally and #11 of 67 in Alabama. Since the April 1, 2020 estimates base of 116,439, the population has declined by 605 (−0.5%), compared with +3.3% for Alabama as a whole.

With 605.9 square miles of land, that is 191 people per square mile (74 per km²), placing Calhoun County #652 nationally for density and #10 in Alabama. The median county equivalent has 47 people per square mile; the Alabama median is 49. Put another way, there are about 3.3 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate116,238115,640115,738116,341116,303115,834
Change—−598+98+603−38−469

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 Calhoun County

9 incorporated places lie at least partly in Calhoun County. Together they are home to 63,165 people (54.5%); the other 52,669 (45.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Anniston city, with 20,930 residents in the county. Among places with at least 1,000 residents in 2020, Ohatchee town grew fastest since then (+2.9%).

Incorporated placePopulation 2025Since 2020Land mi²
Anniston cityCounty seat20,930−2.9%45.9
Oxford cityAlso in 1 other county17,706+0.8%32
Jacksonville city14,400+0.1%10.9
Piedmont cityAlso in 1 other county4,696−2.3%9.825
Weaver city3,289−1.6%3.457
Ohatchee town1,188+2.9%5.876
Hobson City town742−2.6%1.046
Southside cityAlso in 1 other county1960%19.1
Glencoe cityAlso in 1 other county180%17

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

Metropolitan area

Calhoun County is a central county of the Anniston-Oxford, AL Metropolitan Statistical Area. Calhoun County is the area’s only county equivalent, so the metro area has the same 605.9 square miles of land. By combined land it ranks #336 of 393 metropolitan areas, and #343 by population.

ZIP codes

14 ZIP Code Tabulation Areas have land in Calhoun County; 10 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3509635905362013620336205362063620736250362603626536271362723627736279

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 Calhoun County

Calhoun County shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is Talladega County (736.8 mi²) and the smallest is Etowah County (535.1 mi²). Together with its neighbors, Calhoun County forms a block of 3,623.2 mi² of land, of which it holds 16.7%.

Map of Calhoun County and the 5 county equivalents that border it Cleburne County, Alabama: 560.1 mi² landTalladega County, Alabama: 736.8 mi² landEtowah County, Alabama: 535.1 mi² landSt. Clair County, Alabama: 631.6 mi² landCherokee County, Alabama: 553.6 mi² land
Calhoun County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. CalhounCompare
Talladega County736.81.2× largerCompare
St. Clair County631.6about the sameCompare
Cleburne County560.11.1× smallerCompare
Cherokee County553.61.1× smallerCompare
Etowah County535.11.1× smallerCompare

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

Calhoun County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.7 times as much. Alabama’s county land could hold about 84 areas the size of Calhoun County.

Land area: Calhoun County and the closest-sized states
Calhoun County605.9 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 24.6 miles (39.6 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 Calhoun County?

Calhoun County has more land than 1,616 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Calhoun County605.9 mi²
Alabama median672.1 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 Calhoun County at #1,705 nationally by total area, 99 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 1%, compared with a national county-equivalent median of 1.2% — 0.1 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 Calhoun County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1605Wakulla County, Florida606.4Compare
#1606Calhoun County, Alabama605.9This county
#1607Raleigh County, West Virginia605Compare

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 33.765535, -85.824265. 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: 1,569,256,890 m²; AWATER: 16,525,537 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 big is Calhoun County?

Calhoun County, Alabama has 605.9 square miles (1,569.3 km²) of land and 6.381 square miles of water, for a total area of 612.3 square miles. It ranks #1606 of 3,222 U.S. county equivalents by land area.

Is Calhoun County the largest county in Alabama?

No. Calhoun County ranks #51 of 67 in Alabama by land area. The largest is Baldwin County, with 1,589.9 square miles of land.

What counties border Calhoun County?

Calhoun County shares a land border with Cleburne County, Talladega County, Etowah County, St. Clair County, and Cherokee County.

What is the population of Calhoun County?

The Census Bureau estimates Calhoun County had 115,834 residents on July 1, 2025, ranking #562 of 3,222 county equivalents. That is 191 people per square mile of land.

What is the county seat of Calhoun County?

The county seat of Calhoun County is Anniston.

What cities and towns are in Calhoun County?

Calhoun County has 9 incorporated places. The most populous five are Anniston city, Oxford city, Jacksonville city, Piedmont city, and Weaver city; 52,669 residents live outside any incorporated place.

Is Calhoun County part of a metropolitan area?

Yes. It is a central county of the Anniston-Oxford, AL Metropolitan Statistical Area.

How many ZIP codes are in Calhoun County?

14 ZIP Code Tabulation Areas have land in Calhoun County, and 10 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Calhoun County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.7 times as much land.

How many acres of land are in Calhoun County?

The land measurement converts to approximately 387,772 acres. Including water, total area is approximately 391,855 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

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