Skip to content

Capitol Heights, MD ZIP codes

Capitol Heights (also written Capitol Hts), Maryland has 5 ZIP codes, including 4 PO Box ZIPs. They are in Prince George's County.

Population in these ZIPs
41,093
Avg. median income
$76,500population-weighted
Typical home value
$330,900population-weighted
Loading map…

Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 miles

Capitol Heights, MD ZIP codes list

Capitol Heights, MD ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
20731 PO BoxPrince George's County———
20743Prince George's County41,093$76,466$330,900
20790 PO BoxPrince George's County———
20791 PO BoxPrince George's County———
20799 PO BoxPrince George's County———

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Capitol Heights

Frequently asked questions

What is the ZIP code for Capitol Heights, MD?

Capitol Heights, MD has 5 ZIP codes: 20731, 20743, 20790, 20791 and 20799.

What county is Capitol Heights, Maryland in?

Capitol Heights ZIP codes are in Prince George's County.

Which Capitol Heights ZIP codes are PO Boxes?

20731, 20790, 20791 and 20799 are PO Box or single-organization ZIP codes; they have no residential delivery area.