Bond County area

Population and density of Bond County

The Census Bureau estimates that 16,959 people lived in Bond County on July 1, 2025. That ranks #2,042 of 3,222 county equivalents nationally and #60 of 102 in Illinois. Since the April 1, 2020 estimates base of 16,899, the population has grown by 60 (+0.4%), compared with −0.8% for Illinois as a whole.

With 380.3 square miles of land, that is 45 people per square mile (17 per km²), placing Bond County #1,654 nationally for density and #51 in Illinois. The median county equivalent has 47 people per square mile; the Illinois median is 44. Put another way, there are about 14 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 Bond County

10 incorporated places lie at least partly in Bond County. Together they are home to 10,009 people (59%); the other 6,950 (41%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Greenville city, with 7,469 residents in the county.

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

Metropolitan area

Bond County is an outlying county of the St. Louis, MO-IL Metropolitan Statistical Area. Its 15 county equivalents have 2,814,421 residents on 7,863.5 square miles of land; Bond County accounts for 4.8% of the land and 0.6% of the residents. By combined land it ranks #19 of 393 metropolitan areas, and #23 by population. It belongs to the St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area.

ZIP codes

12 ZIP Code Tabulation Areas have land in Bond County; 8 of them have most of their land inside the county, and the others mainly cover neighboring areas.

620176201962074620776208662246622496225362262622736227562284

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 Bond County

Bond County shares a land border with 4 county equivalents. Each of them has more land than Bond County. The largest neighbor is Fayette County (716.5 mi²) and the smallest is Clinton County (473.9 mi²). Together with its neighbors, Bond County forms a block of 2,990 mi² of land, of which it holds 12.7%.

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

Bond County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.7 times as much. Illinois’s county land could hold about 146 areas the size of Bond County.

Another way to picture it: the same land area would fill a square about 19.5 miles (31.4 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 Bond County?

Bond County has more land than 620 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 Bond County at #2,652 nationally by total area, 50 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 0.7%, compared with a national county-equivalent median of 1.2% — 0.5 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 Bond 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.