Postal Code Finder
Registry / United States / Postal code prefixes / 20 / 20609 /

Postal code 20609 in Avenue, United States

Postal code 20609 is mapped to 1 locality record in United States with administrative hierarchy and coordinates.

Verified data profile for Postal code 20609

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
20609
Example code
Postal code Locality Administrative path Coordinates
20609 Avenue Maryland / St. Mary's 38.2826, -76.7466

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Postal code validation data

Use this page to validate one postal code or locality against real parent areas, nearby records and downloadable source rows. The canonical route for this record set is /postal-codes/united-states/code/20609.

Records
1
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
1
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
20609
Sample code from Avenue.
Code Place Hierarchy
20609 Avenue Maryland / St. Mary's
Download postal data
CSV, JSON and XLSX exports for research, validation and data products.
Use the API
Query postal codes by country, place name, region or code prefix.
Implementation notes
Field definitions, canonical paths and practical lookup guidance.

Useful related pages

United States
country
Postal code prefixes
code_index
Prefix 20
code_prefix · 577 records
20604
nearby_postal_code · 1 records
20606
nearby_postal_code · 1 records
20607
nearby_postal_code · 1 records
20608
nearby_postal_code · 1 records
20610
nearby_postal_code · 1 records
20611
nearby_postal_code · 1 records

Data questions

How should I validate 20609?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.

Postal code range

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

View all 20 postal codes

How to validate postal code 20609

Treat 20609 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

Avenue
Maryland / St. Mary's
38.2826, -76.7466

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.

20604
Waldorf
20606
Abell
20607
Accokeek
20608
Aquasco
20610
Barstow
20611
Bel Alton
20612
Benedict
20613
Brandywine