
Vote Smart
ISideWith
LegisTrack
Concrete Bills
GovPredict
Facebook Town Hall
Ballotpedia
GovTrack.us enables users to track the bills and members of the United States Congress.
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, GovTrack.us seems to be more popular. It has been mentioned 12 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 | govtrack.us | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of GovTrack.us yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
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Recommendations tracked on public social media and blogs since March 2021.

Ya'll spend your time focusing on your 2minutes of daily republican hate on reddit without even knowing. Go on govtrack.us and pick any random republican and look. Also conservative =/= republican. Here I just picked Allen Rick from... Source: over 3 years ago
If you are going to read the post, I suggest finding some AP correspondents that dont use Adjectives. Or temper the posts articles, with news of an equal timbre but opposite view. So you can hold them to a standard. And start digging... Source: over 3 years ago
This is a map from govtrack.us. Each hex represents a US Representative. I think the hex represents MI-1 pretty well. Source: almost 4 years ago
Tracking ZIP Code API since May 2026.
When comparing GovTrack.us and ZIP Code API, you can also consider the following products.

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See which American political parties, candidates, and ballot initiatives match your beliefs based on the 2019 issues that are most important to you.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Track bills in every U.S. state + Congress — AI summaries, votes, campaign finance, and the bills that affect you.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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