
Vote.org
ResistBot
Elevated Access
Outvote
Every Voice
Drive Turnout
Register to Vote
Send letters to voters π
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Which is more popular?
Based on our record, Vote Forward seems to be more popular. It has been mentioned 86 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | votefwd.org | zip-codes.com |
| Company | β | Startup from the United States Β· 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Vote Forward yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America β no separate APIs by country or data type. What it does Address validation and standardization β production-grade parser with ZIP+4 append, refreshed monthly Radius search β centroid haversine and...
What each product offers, as listed by its team.

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Walkthroughs and reviews on video.
2020 Year in Review | Vote Forward
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Recommendations tracked on public social media and blogs since March 2021.

Letter writing campaigns here: https://votefwd.org/. Source: almost 3 years ago
Not completely on topic, but I wanted to share that I just wrote letters via Vote Forward (and had a letter writing party) for this election, if anyone wants to join in from not-in-Ohio! Source: over 3 years ago
If anyone is looking for a way to get involved and help defeat this, consider writing letters for vote forward: https://votefwd.org. Source: over 3 years ago
Tracking ZIP Code API since May 2026.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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We believe everyone deserves access to healthcare such as abortion and gender-affirming care.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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