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County ZIP codes · Virginia · FIPS 51101

King William County, VA ZIP Codes

King William County, Virginia has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in King William County and 2 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $83,453 in 23069 (Hanover) to $98,581 in 23009 (Aylett) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of King William County?

23009 · Aylett: $99k23069 · Hanover: $84k23086 · King William: $90k23106 · Manquin: $59k23177 · Walkerton: $95k23181 · West Point: $96k23086230092318123069231772310623009 · Aylett: $99k23069 · Hanover: $84k23086 · King William: $90k23106 · Manquin: $59k23177 · Walkerton: $95k23181 · West Point: $96k23086230092318123069231772310623009 · Aylett: $99k23069 · Hanover: $84k23086 · King William: $90k23106 · Manquin: $59k23177 · Walkerton: $95k23181 · West Point: $96k230862300923181230692317723106
The residential ZIP codes of King William County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $83,453 and $95,699.

They carry 6 postal town names: Aylett, West Point, King William, Hanover, Manquin, Walkerton.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 6 residential ZIP codes in King William County

4 ZIP codes lie mainly in King William County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in King William County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
23009 Aylett 8,270 102 $99k $319k 100%
23181 West Point 5,565 85 $96k $291k 91%
23086 King William 3,777 46 $90k $323k 100%
23106 Manquin 917 39 $59k $321k 100%

Partly in King William County

Residential ZIP codes mainly in another county that reach at least 1% into King William County, by their share here
In this county
23069 Hanover 3,425 50 $84k $356k 35%
23177 Walkerton 608 29 $95k $251k 12%

Download the 6 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

3 ZIP codes of King William County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in King William County and in the neighboring counties
ZIPIn King WilliamElsewhere
2318191%New Kent County 9%
2306935%Hanover County 42%; Caroline County 23%
2317712%King and Queen County 88%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do King William County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. King William County's ZIP codes use 2 prefixes: 230 and 231.

Three-digit prefixes of King William County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are King William County's
PrefixSectional centerHereAll codes
230 Richmond, VA (SCF 230) 3 57
231 Richmond, VA (SCF 230) 3 61

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.