Windsor County area

Population and density of Windsor County

The Census Bureau estimates that 57,312 people lived in Windsor County on July 1, 2025. That ranks #938 of 3,222 county equivalents nationally and #4 of 14 in Vermont. Since the April 1, 2020 estimates base of 57,731, the population has declined by 419 (−0.7%), compared with +0.2% for Vermont as a whole.

With 969.1 square miles of land, that is 59 people per square mile (23 per km²), placing Windsor County #1,395 nationally for density and #6 in Vermont. The median county equivalent has 47 people per square mile; the Vermont median is 57. Put another way, there are about 11 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 Windsor County

Windsor County is divided into 24 cities and towns. In Vermont, county subdivisions are local governments, and together they cover all of the county’s land and residents.

The most populous is Hartford town, with 10,911 residents (19% of the county). The largest by land is Rochester town, at 56.8 mi², or 5.9% of the county’s land. The county seat, Woodstock town, has 2,970 residents. Among those with at least 1,000 residents in 2020, Hartford town grew fastest since then (+2.1%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each subdivision inside Windsor County. Land: 2026 Census Gazetteer. How communities are listed.

Metropolitan area

Windsor County is a central county of the Lebanon-Claremont, NH-VT Micropolitan Statistical Area. Its 4 county equivalents have 224,500 residents on 3,902.6 square miles of land; Windsor County accounts for 24.8% of the land and 25.5% of the residents. By combined land it ranks #38 of 542 micropolitan areas, and #2 by population.

ZIP codes

39 ZIP Code Tabulation Areas have land in Windsor County; 35 of them have most of their land inside the county, and the others mainly cover neighboring areas.

050010500905030050310503205034050350503705048050520505305055050560505905060050620506505067050680507105073050840508805089050910514205143051480514905150051510515305156051610574605758057620576705772

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 Windsor County

Windsor County shares a land border with 7 county equivalents, including 2 in New Hampshire. It has more land than 6 of them. The largest neighbor is Grafton County (1,708.6 mi²) and the smallest is Sullivan County (537.9 mi²). Together with its neighbors, Windsor County forms a block of 7,059.7 mi² of land, of which it holds 13.7%.

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

Windsor County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.1 times as much. Vermont’s county land could hold about 9.5 areas the size of Windsor County.

Another way to picture it: the same land area would fill a square about 31.1 miles (50.1 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 Windsor County?

Windsor County has more land than 2,499 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 Windsor County at #809 nationally by total area, 86 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 0.8%, compared with a national county-equivalent median of 1.2% — 0.4 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 Windsor 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.