Postal Code Finder
Registry / United States / Postal code prefixes / 20 / 20091 /

Postal code 20091 in Washington, United States

Postal code 20091 is mapped to 1 locality record in United States with administrative hierarchy and coordinates.

Verified data profile for Postal code 20091

Based on 1 records, 1 postal code values and 1 mapped localities. Coordinate coverage is 100.0%.

1
Records
1
Postal identifiers
100.0%
Geocoded
20091
Example code
Postal code Locality Administrative path Coordinates
20091 Washington District of Columbia / District of Columbia 38.8933, -77.0146

Related postal lookups

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Postal code range

This code belongs to the 20 prefix range for United States.

View all 20 postal codes

How to validate postal code 20091

Treat 20091 as a text value, not a number. Postal identifiers can contain leading zeroes, spaces or letters in other countries, so applications should validate the country and original string together. For this page, the code is valid when it appears with one of the mapped localities below and the administrative path belongs to United States.

United States lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 20
View related codes in the same prefix range.

Mapped localities

Washington
District of Columbia / District of Columbia
38.8933, -77.0146

Common lookup mistakes

A postal code can map to more than one locality record, and the same locality name can appear in different administrative areas. Always compare the country, postal code, place name and region together before treating a match as final.

Coordinates on this page are useful for map previews and approximate area checks. They should be read as locality or postal-area centroids, not as exact delivery addresses. For bulk validation, download the country dataset and keep this canonical URL as the human-readable reference for the code.

Nearby postal code lookups

These neighboring identifiers help compare adjacent code ranges inside United States. Each link opens a canonical postal-code page with its mapped places and administrative context.

20080
Washington
20081
Washington
20082
Washington
20090
Washington
20101
Dulles
20102
Dulles
20103
Dulles
20104
Dulles