Postal Code Finder
Registry / United States / Maryland / Baltimore / Riderwood

Riderwood postal code 21139

Verified postal identifier in Baltimore, United States. Technical profile with precision geocoding and administrative hierarchy.

Verified data profile for Riderwood

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
21139
Example code
Postal code Locality Administrative path Coordinates
21139 Riderwood Maryland / Baltimore 39.4093, -76.6486

Related postal lookups

United States
Country
Prefix 21
Postal code range · 380 records
21131
Nearby postal code · 1 records
21132
Nearby postal code · 1 records
21133
Nearby postal code · 1 records
21136
Nearby postal code · 1 records
21140
Nearby postal code · 1 records
21144
Nearby postal code · 1 records

Local postal record details

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/maryland/baltimore/riderwood.

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
21139
Sample code from Riderwood.
Code Place Hierarchy Coordinates
21139 Riderwood Maryland / Baltimore 39.4093, -76.6486
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
Prefix 21
Postal code range · 380 records
21131
Nearby postal code · 1 records
21132
Nearby postal code · 1 records
21133
Nearby postal code · 1 records
21136
Nearby postal code · 1 records
21140
Nearby postal code · 1 records
21144
Nearby postal code · 1 records

Data questions

How should I validate 21139?

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.

Validation and related lookup paths

Use this page to confirm that 21139 belongs to Riderwood inside United States. For applications, validate the original postal code string together with the country and administrative hierarchy instead of relying on a global numeric pattern.

United States country lookup
Open top regions, formats and downloads.
Prefix 21
Compare nearby postal identifiers.
Maryland
Parent administrative area.
Baltimore
Parent administrative area.

Verified Technical Data

Postal Identifier 21139
Locality Name Riderwood
Administrative L1 Maryland
Administrative L2 Baltimore
Spatial Coordinates LAT: 39.4093
LNG: -76.6486

Spatial Verification Map

Centroid Location: The marker represents the verified geographic centroid for the 21139 identifier area.

Geographic & Administrative Context

The postal identifier 21139 is under the regional jurisdiction of United States. Within this territory, it is specifically managed as part of the Maryland » Baltimore » Riderwood administrative chain, ensuring precise logistical and geographic synchronization with official geocoded registries.

Nearby postal code lookups

Compare 21139 with adjacent identifiers in United States. These links keep the local code range connected without loading a large directory table.

21131
Phoenix
21132
Pylesville
21133
Randallstown
21136
Reisterstown
21140
Riva
21144
Severn
21146
Severna Park
21150
Simpsonville

Frequently Asked Questions: Riderwood postal code guide

What is the postal structure for Riderwood?

Riderwood is represented in the United States postal registry with verified coordinates and administrative hierarchy fields.

Can I download postal code data for Riderwood?

Yes. The dataset for Riderwood can be exported in CSV, Excel and JSON formats from the download section on this page.

Is this postal code geocoded?

Yes. The record includes latitude and longitude coordinates and verified administrative labels for mapping and validation.

How should I validate 21139?

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.