Postal Code Finder
Registry / United States / ZIP Code prefixes / 20 / 20422 /

ZIP Code 20422 — Washington, District of Columbia

📍 What is My Postal Code?

Postal code 20422 covers 1 verified locality record in United States with interactive boundary centroid map and administrative hierarchy.

VERIFIED QUICK ANSWER & ADDRESS FORMAT 📏 Calculate Distance & Mail Time from 20422 →
County / Jurisdiction
District of Columbia County
State & Primary City
Washington, District of Columbia (United States)
📦 How to Write a Mailing Address for 20422 
JANE DOE
123 MAIN ST APT 4B
WASHINGTON, DISTRICT OF COLUMBIA 20422
UNITED STATES

Mapped Localities for 20422

1 Place
Washington
20422
District of Columbia
📍 38.8933, -77.0146

Interactive Map: 20422 (United States)

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 20422.

Nearby postal code lookups in United States

Compare 20422 with adjacent postal codes in the same area or prefix range:

20409 📍 0.0 km · 0.0 mi
Washington
20410 📍 0.0 km · 0.0 mi
Washington
20413 📍 0.0 km · 0.0 mi
Washington
20415 📍 0.0 km · 0.0 mi
Washington
20416 📍 0.0 km · 0.0 mi
Washington
20419 📍 0.0 km · 0.0 mi
Washington
20421 📍 0.0 km · 0.0 mi
Washington
20423 📍 0.0 km · 0.0 mi
Washington

Postal code prefix range: 20

Postal code 20422 belongs to the 20 prefix district in United States.

View all 20 postal codes → United States Directory

Verified data profile for ZIP Code 20422

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
20422
Example code
Postal code Locality Administrative path Coordinates
20422 Washington District of Columbia / District of Columbia 38.8933, -77.0146

Related postal lookups

United States
Country
ZIP Code prefixes
Postal code prefixes
Prefix 20
Postal code range · 577 records
20409
Nearby postal code · 1 records
20410
Nearby postal code · 1 records
20413
Nearby postal code · 1 records
20415
Nearby postal code · 1 records
20416
Nearby postal code · 1 records
20419
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/20422.

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
20422
Sample code from Washington.
Code Place Hierarchy Coordinates
20422 Washington District of Columbia / District of Columbia 38.8933, -77.0146
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
ZIP Code prefixes
Postal code prefixes
Prefix 20
Postal code range · 577 records
20409
Nearby postal code · 1 records
20410
Nearby postal code · 1 records
20413
Nearby postal code · 1 records
20415
Nearby postal code · 1 records
20416
Nearby postal code · 1 records
20419
Nearby postal code · 1 records

Data questions

How should I validate 20422?

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.