MS · GEOID 28143

Tunica County area

Tunica County, Mississippi covers 476.1 square miles: 454.1 square miles of land and 22 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area454.1 mi²
Water area22 mi²
Total area476.1 mi²
National land rank#2254

County outline

Generalized outline of Tunica 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 Tunica County is located

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

Area breakdown

Land accounts for 95.4% of Tunica County’s measured area and water for 4.6%. Its combined area converts to 1,233.2 square kilometers or approximately 304,732 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land454.131,176.191290,643.2
Water22.01357.01314,088.3
Total476.1431,233.205304,731.5

How Tunica County compares

By original Census land area, Tunica County ranks #60 of 82 in Mississippi and #2254 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.801 times the Mississippi county-equivalent median of 567 square miles. It accounts for 1% of the combined county land area in the state.

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

What stands out about Tunica County?

Tunica County has more land than 968 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Tunica County454.1 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 Tunica County at #2,258 nationally by total area, 4 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 4.6%, compared with a national county-equivalent median of 1.2% — 3.5 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 Tunica County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2253Grady County, Georgia454.5Compare
#2254Tunica County, Mississippi454.1This county
#2255Mercer County, Missouri453.8Compare

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 34.652201, -90.371770. 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: 1,176,191,635 m²; AWATER: 57,012,296 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 Tunica County?

The land measurement converts to approximately 290,643 acres. Including water, total area is approximately 304,732 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