Andrew County area

Population and density of Andrew County

The Census Bureau estimates that 18,241 people lived in Andrew County on July 1, 2025. That ranks #1,980 of 3,222 county equivalents nationally and #60 of 115 in Missouri. Since the April 1, 2020 estimates base of 18,136, the population has grown by 105 (+0.6%), compared with +1.9% for Missouri as a whole.

With 432.6 square miles of land, that is 42 people per square mile (16 per km²), placing Andrew County #1,704 nationally for density and #45 in Missouri. The median county equivalent has 47 people per square mile; the Missouri median is 31. Put another way, there are about 15 acres of land per resident.

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 Andrew County

8 incorporated places lie at least partly in Andrew County. Together they are home to 8,490 people (46.5%); the other 9,751 (53.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Savannah city, with 5,107 residents in the county. By land, Country Club village is the largest at 3.906 mi². Among places with at least 1,000 residents in 2020, Savannah city grew fastest since then (+0.9%).

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

Metropolitan area

Andrew County is an outlying county of the St. Joseph, MO-KS Metropolitan Statistical Area. Its 4 county equivalents have 119,170 residents on 1,655.7 square miles of land; Andrew County accounts for 26.1% of the land and 15.3% of the residents. By combined land it ranks #193 of 393 metropolitan areas, and #339 by population. It belongs to the Kansas City-Overland Park-Kansas City, MO-KS Combined Statistical Area.

ZIP codes

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

6442164423644276443064436644496445564457644596446364480644836448564494645056450664507

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 Andrew County

Andrew County shares a land border with 6 county equivalents, including 1 in Kansas. It has more land than 3 of them. The largest neighbor is Nodaway County (877 mi²) and the smallest is Doniphan County (393.5 mi²). Together with its neighbors, Andrew County forms a block of 3,486.8 mi² of land, of which it holds 12.4%.

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

Andrew County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.4 times as much. Missouri’s county land could hold about 159 areas the size of Andrew County.

Another way to picture it: the same land area would fill a square about 20.8 miles (33.5 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 Andrew County?

Andrew County has more land than 876 of the other 3,221 county equivalents in the dataset.

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 Andrew County at #2,407 nationally by total area, 61 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 0.9%, compared with a national county-equivalent median of 1.2% — 0.3 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 Andrew County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

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.