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Registry / United States / Postal code prefixes / 20 / 20837 /

Postal code 20837 in Poolesville, United States

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Postal code 20837 covers 1 verified locality record in United States with interactive boundary centroid map and administrative hierarchy.

Mapped Localities for 20837

1 Place
Poolesville
20837
Maryland · Montgomery
📍 39.1386, -77.4067

Interactive Map: 20837 (United States)

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 20837.

Nearby postal code lookups in United States

Compare 20837 with adjacent postal codes in the same area or prefix range:

20827
Bethesda
20830
Olney
20832
Olney
20833
Brookeville
20838
Barnesville
20839
Beallsville
20841
Boyds
20842
Dickerson

Postal code prefix range: 20

Postal code 20837 belongs to the 20 prefix district in United States.

View all 20 postal codes → United States Directory

Verified data profile for Postal code 20837

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
20837
Example code
Postal code Locality Administrative path Coordinates
20837 Poolesville Maryland / Montgomery 39.1386, -77.4067

Related postal lookups

United States
Country
Postal code prefixes
Postal code prefixes
Prefix 20
Postal code range · 577 records
20827
Nearby postal code · 1 records
20830
Nearby postal code · 1 records
20832
Nearby postal code · 1 records
20833
Nearby postal code · 1 records
20838
Nearby postal code · 1 records
20839
Nearby postal code · 1 records

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/20837.

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
20837
Sample code from Poolesville.
Code Place Hierarchy Coordinates
20837 Poolesville Maryland / Montgomery 39.1386, -77.4067
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
Postal code prefixes
Prefix 20
Postal code range · 577 records
20827
Nearby postal code · 1 records
20830
Nearby postal code · 1 records
20832
Nearby postal code · 1 records
20833
Nearby postal code · 1 records
20838
Nearby postal code · 1 records
20839
Nearby postal code · 1 records

Data questions

How should I validate 20837?

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.