ZIP Codes of Caroline County, VA

Population & People
Population & People
Total Population
30,953
Household Income
Household Income
Median Income
$100,678
Housing
Housing
Total Housing Units
12,456
Business & Economy
Business & Economy
Total Businesses
419
Employment
Employment
Employment Rate
62.38%
Education
Education
Bachelor's Degree+
21.42%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 10 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:10 ZIP Codes (7 Standard, 2 PO Box, 1 Unique) [See All]
Area Codes:540 / 686 / 804 / 826
Timezone:Eastern (GMT -05:00)
Local Time:11:55:27 PM
Population:30,953 [See All]
FIPS:51033
Land Area:507 sq mi
Water Area:9 sq mi
Coordinates:38.0688, -77.3337
Quick Link:
https://www.zip-codes.com/county/va-caroline.asp
Need Caroline data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Striking education divide
Bachelor's share spans 15.1% to 63.8% — a 49-point gap.

Standout ZIPs in this County


Most Populous
Ruther Glen · 18,392 people
59.4% of county total
Highest Income
Port Royal · $160,259 median
1.6× county average
Largest Land Area
Ruther Glen · 161.3 sq mi
Spans the most ground
Fastest Growth
Ruther Glen · 15.0% (10-yr)
15,997 → 18,392 residents
Most Educated
Ruther Glen · 21.6% bachelor's+
2,737 of 12,692 adults 25+

Things worth knowing about Caroline County


30,953 residents live across 10 ZIPs covering 507 sq mi, served by 9 distinct USPS-recognized cities.

Population moved from 28,399 to 30,953 from 2014 to 2024 — a +9.0% change. 4 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 22535 (Port Royal, $160,259 median) and poorest ZIP 22514 (Milford, $78,792) are 12.9 miles apart — a 2.0× income gap across local geography.

Median home values vary 1.4× across this county — from $260,600 in 22514 (Milford) to $365,800 in 22535 (Port Royal).

Density varies across the county — from 14 people/sq mi in 22538 (Rappahannock Academy) to 114 in 22546 (Ruther Glen).

Educational attainment ranges from 15.1% bachelor's+ in 22514 (Milford) to 63.8% in 22535 (Port Royal) — the breadth of educational profiles across the area.

Within Virginia, this is the #58 most populous of 134 counties and ranks #27 for median household income with the #27 fastest decade growth .

Hosts 1 single-entity Unique ZIP: 22428Boy Scouts Of America .

Weighted by population, the typical household earns about $89,155 across the county — reflecting what a typical resident sees, not a simple ZIP average.

21.4% of adults age 25+ hold a bachelor's degree or higher (4,654 of 21,724 reporting).

7 Standard delivery, 2 PO Box only, 1 single-entity Unique ZIPs serve this county.

Stories about Caroline County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
507
square miles
Avg density
61.0
people per sq mi
Population
30,953
across 10 ZIPs
Ruther Glen
161.3 sq mi
18,392 residents
Bowling Green
112.4 sq mi
4,356 residents
Woodford
110.7 sq mi
5,107 residents

All ZIP Codes in Caroline County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
22546Ruther GlenStandard18,392$89,247161.315.0%
22580WoodfordStandard5,107$93,603110.7-2.5%
22427Bowling GreenStandard4,356$81,488112.46.6%
22514MilfordStandard2,290$78,79280.0-5.8%
22535Port RoyalStandard460$160,25918.012.2%
22538Rappahannock AcademyStandard34824.946.2%
22446CorbinPO Box0.0
22552SpartaPO Box0.0
22501LadysmithStandard0.0
22428Bowling GreenUnique0.0

Adjacent & Nearby Counties