Botetourt County area

Botetourt County, Virginia covers 546 square miles: 541.3 square miles of land and 4.682 square miles of water. Its county seat is Fincastle. An estimated 34,144 people lived there in 2025.

Official Census measurements · GEOID 510232026 Gazetteer · retrieved September 27, 2026
Land area541.3 mi²
Water area4.682 mi²
Population (2025)34,144
People per mi²63

County outline

Generalized outline of Botetourt County, Virginia
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 Botetourt County is located

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

Area breakdown

Land accounts for 99.1% of Botetourt County’s measured area and water for 0.9%. Its combined area converts to 1,414 square kilometers or approximately 349,413 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land541.2761,401.898346,416.6
Water4.68212.1262,996.5
Total545.9581,414.025349,413.1

How Botetourt County compares

By original Census land area, Botetourt County ranks #15 of 133 in Virginia and #1930 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.746 times the Virginia county-equivalent median of 310 square miles. It accounts for 1.4% of the combined county land area in the state.

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

Population and density of Botetourt County

The Census Bureau estimates that 34,144 people lived in Botetourt County on July 1, 2025. That ranks #1,372 of 3,222 county equivalents nationally and #51 of 133 in Virginia. Since the April 1, 2020 estimates base of 33,588, the population has grown by 556 (+1.7%), compared with +2.9% for Virginia as a whole.

With 541.3 square miles of land, that is 63 people per square mile (24 per km²), placing Botetourt County #1,350 nationally for density and #92 in Virginia. The median county equivalent has 47 people per square mile; the Virginia median is 109. Put another way, there are about 10 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate33,63634,00334,08834,13834,05734,144
Change—+367+85+50−81+87

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 Botetourt County

3 incorporated places lie at least partly in Botetourt County. Together they are home to 2,505 people (7.3%); the other 31,639 (92.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Buchanan town, with 1,212 residents in the county. The county seat, Fincastle town, has 825 residents.

Incorporated placePopulation 2025Since 2020Land mi²
Buchanan town1,212+1.4%2.169
Fincastle townCounty seat825+1.2%2.046
Troutville town468+1.5%0.692

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

Metropolitan area

Botetourt County is a central county of the Roanoke, VA Metropolitan Statistical Area. Its 6 county equivalents have 316,547 residents on 1,867.6 square miles of land; Botetourt County accounts for 29% of the land and 10.8% of the residents. By combined land it ranks #168 of 393 metropolitan areas, and #167 by population.

County equivalentPopulation 2025Land mi²
Roanoke city99,11142.5
Roanoke County97,150250.5
Franklin County55,526690.6
Botetourt County34,144541.3
Salem city25,81614.5
Craig County4,800328.1

ZIP codes

12 ZIP Code Tabulation Areas have land in Botetourt County; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.

240122401924064240662407724083240852409024153241752442224450

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 Botetourt County

Botetourt County shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is Bedford County (760.1 mi²) and the smallest is Roanoke County (250.5 mi²). Together with its neighbors, Botetourt County forms a block of 2,923.2 mi² of land, of which it holds 18.5%.

Map of Botetourt County and the 5 county equivalents that border it Bedford County, Virginia: 760.1 mi² landAlleghany County, Virginia: 446.6 mi² landRockbridge County, Virginia: 596.5 mi² landCraig County, Virginia: 328.1 mi² landRoanoke County, Virginia: 250.5 mi² land
Botetourt County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. BotetourtCompare
Bedford County760.11.4× largerCompare
Rockbridge County596.51.1× largerCompare
Alleghany County446.61.2× smallerCompare
Craig County328.11.6× smallerCompare
Roanoke County250.52.2× smallerCompare

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

Botetourt 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. Virginia’s county land could hold about 73 areas the size of Botetourt County.

Land area: Botetourt County and the closest-sized states
Botetourt County541.3 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 23.3 miles (37.4 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 Botetourt County?

Botetourt County has more land than 1,292 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Botetourt County541.3 mi²
Virginia median310 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 Botetourt County at #2,019 nationally by total area, 89 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 Botetourt County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1929Warren County, Kentucky541.7Compare
#1930Botetourt County, Virginia541.3This county
#1931Dallas County, Missouri541Compare

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 37.565445, -79.797552. 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: 1,401,898,962 m²; AWATER: 12,126,228 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 big is Botetourt County?

Botetourt County, Virginia has 541.3 square miles (1,401.9 km²) of land and 4.682 square miles of water, for a total area of 546 square miles. It ranks #1930 of 3,222 U.S. county equivalents by land area.

Is Botetourt County the largest county in Virginia?

No. Botetourt County ranks #15 of 133 in Virginia by land area. The largest is Pittsylvania County, with 969 square miles of land.

What counties border Botetourt County?

Botetourt County shares a land border with Bedford County, Alleghany County, Rockbridge County, Craig County, and Roanoke County.

What is the population of Botetourt County?

The Census Bureau estimates Botetourt County had 34,144 residents on July 1, 2025, ranking #1,372 of 3,222 county equivalents. That is 63 people per square mile of land.

What is the county seat of Botetourt County?

The county seat of Botetourt County is Fincastle.

What cities and towns are in Botetourt County?

Botetourt County has 3 incorporated places. The most populous are Buchanan town, Fincastle town, and Troutville town; 31,639 residents live outside any incorporated place.

Is Botetourt County part of a metropolitan area?

Yes. It is a central county of the Roanoke, VA Metropolitan Statistical Area, which has 6 county equivalents and 316,547 residents.

How many ZIP codes are in Botetourt County?

12 ZIP Code Tabulation Areas have land in Botetourt County, and 6 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Botetourt County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.9 times as much land.

How many acres of land are in Botetourt County?

The land measurement converts to approximately 346,417 acres. Including water, total area is approximately 349,413 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

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