Amite County area

Amite County, Mississippi covers 731.6 square miles: 730.1 square miles of land and 1.497 square miles of water. Its county seat is Liberty. An estimated 12,487 people lived there in 2025.

Official Census measurements · GEOID 280052026 Gazetteer · retrieved September 27, 2026
Land area730.1 mi²
Water area1.497 mi²
Population (2025)12,487
People per mi²17

County outline

Generalized outline of Amite County, Mississippi
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 Amite County is located

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

Area breakdown

Land accounts for 99.8% of Amite County’s measured area and water for 0.2%. Its combined area converts to 1,894.8 square kilometers or approximately 468,222 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land730.11,890.95467,264
Water1.4973.877958.1
Total731.5971,894.828468,222.1

How Amite County compares

By original Census land area, Amite County ranks #12 of 82 in Mississippi and #1214 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.288 times the Mississippi county-equivalent median of 567 square miles. It accounts for 1.6% of the combined county land area in the state.

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

Population and density of Amite County

The Census Bureau estimates that 12,487 people lived in Amite County on July 1, 2025. That ranks #2,324 of 3,222 county equivalents nationally and #61 of 82 in Mississippi. Since the April 1, 2020 estimates base of 12,723, the population has declined by 236 (−1.9%), compared with −0.2% for Mississippi as a whole.

With 730.1 square miles of land, that is 17 people per square mile (6.6 per km²), placing Amite County #2,407 nationally for density and #70 in Mississippi. The median county equivalent has 47 people per square mile; the Mississippi median is 43. Put another way, there are about 37 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate12,70312,62612,56412,48312,50012,487
Change—−77−62−81+17−13

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 Amite County

4 incorporated places lie at least partly in Amite County. Together they are home to 1,619 people (13%); the other 10,868 (87%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Gloster town, with 859 residents in the county. The county seat, Liberty town, has 532 residents. By land, Centreville town is the largest at 2.316 mi² across all its counties.

Incorporated placePopulation 2025Since 2020Land mi²
Gloster town859−4.6%1.824
Liberty townCounty seat532−5%2.061
Centreville townAlso in 1 other county161−1.2%2.316
Crosby townAlso in 1 other county67−2.9%2.119

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

Metropolitan area

Amite County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

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

396313963339638396453965239653396573966439666

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 Amite County

Amite County shares a land border with 7 county equivalents, including 3 in Louisiana. It has more land than 6 of them. The largest neighbor is Tangipahoa Parish (791.2 mi²) and the smallest is St. Helena Parish (408.5 mi²). Together with its neighbors, Amite County forms a block of 4,620.5 mi² of land, of which it holds 15.8%.

Map of Amite County and the 7 county equivalents that border it Franklin County, Mississippi: 564 mi² landPike County, Mississippi: 409.2 mi² landWilkinson County, Mississippi: 678 mi² landSt. Helena Parish, Louisiana: 408.5 mi² landEast Feliciana Parish, Louisiana: 453.3 mi² landLincoln County, Mississippi: 586.2 mi² landTangipahoa Parish, Louisiana: 791.2 mi² land
Amite 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. AmiteCompare
Tangipahoa ParishLouisiana791.21.1× largerCompare
Wilkinson County6781.1× smallerCompare
Lincoln County586.21.2× smallerCompare
Franklin County5641.3× smallerCompare
East Feliciana ParishLouisiana453.31.6× smallerCompare
Pike County409.21.8× smallerCompare
St. Helena ParishLouisiana408.51.8× smallerCompare

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

Amite County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.4 times as much. Mississippi’s county land could hold about 64 areas the size of Amite County.

Land area: Amite County and the closest-sized states
Amite County730.1 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 27 miles (43.5 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 Amite County?

Amite County has more land than 2,008 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Amite County730.1 mi²
Mississippi median567 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 Amite County at #1,317 nationally by total area, 103 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 0.2%, compared with a national county-equivalent median of 1.2% — 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 Amite County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1213Waldo County, Maine730.2Compare
#1214Amite County, Mississippi730.1This county
#1215Allegheny County, Pennsylvania730Compare

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 31.203933, -90.795543. 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: 1,890,950,863 m²; AWATER: 3,877,823 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 Amite County?

Amite County, Mississippi has 730.1 square miles (1,891 km²) of land and 1.497 square miles of water, for a total area of 731.6 square miles. It ranks #1214 of 3,222 U.S. county equivalents by land area.

Is Amite County the largest county in Mississippi?

No. Amite County ranks #12 of 82 in Mississippi by land area. The largest is Yazoo County, with 922.3 square miles of land.

What counties border Amite County?

Amite County shares a land border with Franklin County, Pike County, Wilkinson County, St. Helena Parish, Louisiana, East Feliciana Parish, Louisiana, Lincoln County, and Tangipahoa Parish, Louisiana.

What is the population of Amite County?

The Census Bureau estimates Amite County had 12,487 residents on July 1, 2025, ranking #2,324 of 3,222 county equivalents. That is 17 people per square mile of land.

What is the county seat of Amite County?

The county seat of Amite County is Liberty.

What cities and towns are in Amite County?

Amite County has 4 incorporated places. The most populous are Gloster town, Liberty town, Centreville town, and Crosby town; 10,868 residents live outside any incorporated place.

Is Amite County part of a metropolitan area?

No. Amite County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Amite County?

9 ZIP Code Tabulation Areas have land in Amite County, and 3 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has less land than every state. Rhode Island, the smallest, has 1.4 times as much land.

How many acres of land are in Amite County?

The land measurement converts to approximately 467,264 acres. Including water, total area is approximately 468,222 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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