MO · GEOID 29181

Ripley County area

Ripley County, Missouri covers 631.6 square miles: 629.5 square miles of land and 2.1 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area629.5 mi²
Water area2.1 mi²
Total area631.6 mi²
National land rank#1526

County outline

Generalized outline of Ripley County, Missouri
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 Ripley County is located

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

Area breakdown

Land accounts for 99.7% of Ripley County’s measured area and water for 0.3%. Its combined area converts to 1,635.9 square kilometers or approximately 404,238 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land629.5161,630.439402,890.2
Water2.1065.4551,347.8
Total631.6221,635.893404,238.1

How Ripley County compares

By original Census land area, Ripley County ranks #46 of 115 in Missouri and #1526 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.063 times the Missouri county-equivalent median of 592 square miles. It accounts for 0.9% of the combined county land area in the state.

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

What stands out about Ripley County?

Ripley County has more land than 1,696 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Ripley County629.5 mi²
Missouri median592 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 Ripley County at #1,639 nationally by total area, 113 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 Ripley County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1525Carroll County, Arkansas629.9Compare
#1526Ripley County, Missouri629.5This county
#1527Lee County, Texas629.1Compare

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 36.645532, -90.869137. 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: 1,630,438,187 m²; AWATER: 5,455,724 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 Ripley County?

The land measurement converts to approximately 402,890 acres. Including water, total area is approximately 404,238 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