County outline
Where Brunswick County is located
Area breakdown
Land accounts for 99.4% of Brunswick County’s measured area and water for 0.6%. Its combined area converts to 1,475.2 square kilometers or approximately 364,532 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 566.351 | 1,466.842 | 362,464.6 |
| Water | 3.23 | 8.366 | 2,067.2 |
| Total | 569.581 | 1,475.208 | 364,531.8 |
How Brunswick County compares
By original Census land area, Brunswick County ranks #13 of 133 in Virginia and #1806 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.827 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 Brunswick County
The Census Bureau estimates that 15,727 people lived in Brunswick County on July 1, 2025. That ranks #2,125 of 3,222 county equivalents nationally and #96 of 133 in Virginia. Since the April 1, 2020 estimates base of 15,849, the population has declined by 122 (−0.8%), compared with +2.9% for Virginia as a whole.
With 566.4 square miles of land, that is 28 people per square mile (11 per km²), placing Brunswick County #2,073 nationally for density and #125 in Virginia. The median county equivalent has 47 people per square mile; the Virginia median is 109. Put another way, there are about 23 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 15,824 | 15,965 | 15,846 | 15,786 | 15,763 | 15,727 |
| Change | — | +141 | −119 | −60 | −23 | −36 |
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 Brunswick County
3 incorporated places lie at least partly in Brunswick County. Together they are home to 1,516 people (9.6%); the other 14,211 (90.4%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Lawrenceville town, with 985 residents in the county. By land, Alberta town is the largest at 2.134 mi².
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Lawrenceville townCounty seat | 985 | −1.8% | 1.151 |
| Alberta town | 295 | −1.7% | 2.134 |
| Brodnax townAlso in 1 other county | 236 | −0.8% | 0.705 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Brunswick County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Brunswick County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.
ZIP codes
16 ZIP Code Tabulation Areas have land in Brunswick County; 12 of them have most of their land inside the county, and the others mainly cover neighboring areas.
23821238242384323845238472385623857238682387623887238892389323919239202393823950
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 Brunswick County
Brunswick County shares a land border with 7 county equivalents, including 2 in North Carolina. It has more land than 6 of them. The largest neighbor is Mecklenburg County (625.3 mi²) and the smallest is Greensville County (295.4 mi²). Together with its neighbors, Brunswick County forms a block of 3,700.6 mi² of land, of which it holds 15.3%.
| Bordering county equivalent | Land mi² | Size vs. Brunswick | Compare |
|---|---|---|---|
| Mecklenburg County | 625.3 | 1.1× larger | Compare |
| Northampton CountyNorth Carolina | 536.7 | 1.1× smaller | Compare |
| Dinwiddie County | 503.8 | 1.1× smaller | Compare |
| Lunenburg County | 431.7 | 1.3× smaller | Compare |
| Warren CountyNorth Carolina | 429.4 | 1.3× smaller | Compare |
| Nottoway County | 311.9 | 1.8× smaller | Compare |
| Greensville County | 295.4 | 1.9× smaller | Compare |
How big is Brunswick County compared with U.S. states?
Brunswick County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.8 times as much. Virginia’s county land could hold about 70 areas the size of Brunswick County.
Another way to picture it: the same land area would fill a square about 23.8 miles (38.3 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 Brunswick County?
Brunswick County has more land than 1,416 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 Brunswick County at #1,934 nationally by total area, 128 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 0.6%, compared with a national county-equivalent median of 1.2% — 0.6 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 Brunswick County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #1805 | Clay County, Iowa | 567.2 | Compare |
| #1806 | Brunswick County, Virginia | 566.4 | This county |
| #1807 | Osceola County, Michigan | 566.3 | Compare |
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 36.764204, -77.861483. 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: 1,466,843,020 m²; AWATER: 8,366,367 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Brunswick County?
Brunswick County, Virginia has 566.4 square miles (1,466.8 km²) of land and 3.23 square miles of water, for a total area of 569.6 square miles. It ranks #1806 of 3,222 U.S. county equivalents by land area.
Is Brunswick County the largest county in Virginia?
No. Brunswick County ranks #13 of 133 in Virginia by land area. The largest is Pittsylvania County, with 969 square miles of land.
What counties border Brunswick County?
Brunswick County shares a land border with Greensville County, Lunenburg County, Mecklenburg County, Dinwiddie County, Warren County, North Carolina, Northampton County, North Carolina, and Nottoway County.
What is the population of Brunswick County?
The Census Bureau estimates Brunswick County had 15,727 residents on July 1, 2025, ranking #2,125 of 3,222 county equivalents. That is 28 people per square mile of land.
What is the county seat of Brunswick County?
The county seat of Brunswick County is Lawrenceville.
What cities and towns are in Brunswick County?
Brunswick County has 3 incorporated places. The most populous are Lawrenceville town, Alberta town, and Brodnax town; 14,211 residents live outside any incorporated place.
Is Brunswick County part of a metropolitan area?
No. Brunswick County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Brunswick County?
16 ZIP Code Tabulation Areas have land in Brunswick County, and 12 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Brunswick County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 1.8 times as much land.
How many acres of land are in Brunswick County?
The land measurement converts to approximately 362,465 acres. Including water, total area is approximately 364,532 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.