Kosciusko County area

Population and density of Kosciusko County

The Census Bureau estimates that 80,892 people lived in Kosciusko County on July 1, 2025. That ranks #732 of 3,222 county equivalents nationally and #22 of 92 in Indiana. Since the April 1, 2020 estimates base of 80,234, the population has grown by 658 (+0.8%), compared with +2.8% for Indiana as a whole.

With 531.4 square miles of land, that is 152 people per square mile (59 per km²), placing Kosciusko County #767 nationally for density and #28 in Indiana. The median county equivalent has 47 people per square mile; the Indiana median is 88. Put another way, there are about 4.2 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 Kosciusko County

14 incorporated places lie at least partly in Kosciusko County. Together they are home to 31,997 people (39.6%); the other 48,895 (60.4%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Warsaw city, with 16,130 residents in the county. Among places with at least 1,000 residents in 2020, Warsaw city grew fastest since then (+2%).

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

Metropolitan area

Kosciusko County is a central county of the Warsaw, IN Micropolitan Statistical Area. Kosciusko County is the area’s only county equivalent, so the micro area has the same 531.4 square miles of land. By combined land it ranks #414 of 542 micropolitan areas, and #71 by population. It belongs to the South Bend-Elkhart-Mishawaka, IN-MI Combined Statistical Area.

ZIP codes

21 ZIP Code Tabulation Areas have land in Kosciusko County; 14 of them have most of their land inside the county, and the others mainly cover neighboring areas.

465024650446506465084651046524465384653946542465504655546562465674658046582465904673246787469104696246982

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 Kosciusko County

Kosciusko County shares a land border with 6 county equivalents. It has more land than every one of them. The largest neighbor is Elkhart County (463.2 mi²) and the smallest is Whitley County (335.6 mi²). Together with its neighbors, Kosciusko County forms a block of 2,965.6 mi² of land, of which it holds 17.9%.

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

Kosciusko County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.9 times as much. Indiana’s county land could hold about 67 areas the size of Kosciusko County.

Another way to picture it: the same land area would fill a square about 23.1 miles (37.1 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 Kosciusko County?

Kosciusko County has more land than 1,252 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 Kosciusko County at #1,996 nationally by total area, 26 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 4.1%, compared with a national county-equivalent median of 1.2% — 3 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 Kosciusko 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.