ME · GEOID 23027

Waldo County area

Waldo County, Maine covers 864.4 square miles: 730.2 square miles of land and 134.2 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area730.2 mi²
Water area134.2 mi²
Total area864.4 mi²
National land rank#1213

County outline

Generalized outline of Waldo County, Maine
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 Waldo County is located

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

Area breakdown

Land accounts for 84.5% of Waldo County’s measured area and water for 15.5%. Its combined area converts to 2,238.9 square kilometers or approximately 553,233 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land730.2271,891.279467,345.3
Water134.199347.57485,887.4
Total864.4262,238.853553,232.6

How Waldo County compares

By original Census land area, Waldo County ranks #12 of 16 in Maine and #1213 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.566 times the Maine county-equivalent median of 1,289.2 square miles. It accounts for 2.4% of the combined county land area in the state.

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

What stands out about Waldo County?

Waldo County has more land than 2,009 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Waldo County730.2 mi²
Maine median1,289.2 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 Waldo County at #1,056 nationally by total area, 157 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 15.5%, compared with a national county-equivalent median of 1.2% — 14.4 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 Waldo County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1212Jasper County, Iowa730.4Compare
#1213Waldo County, Maine730.2This county
#1214Amite County, Mississippi730.1Compare

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 44.475023, -69.117429. 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: 1,891,279,814 m²; AWATER: 347,573,342 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 Waldo County?

The land measurement converts to approximately 467,345 acres. Including water, total area is approximately 553,233 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