Sites using US Census Bureau API
Public API serving United States census and demographic datasets.
Get told when a new site ships with US Census Bureau API.
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See how alerts work56 sites
53 found by StackScope, 3 via launch platforms
- StackScope Discovery (Indie) 40
- StackScope Wider Web 13
- Hacker News 2
- Product Hunt 1
US Census Bureau API has been detected on 56 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Pacebound: Road Trip Planner, on September 20, 2026.
It's most commonly paired with HSTS, Google Fonts, and Cloudflare DNS. By product type, the launches using it are most often Finance (29%), Productivity (24%), and Developer Tools (12%).
What kind of products ship with US Census Bureau API
17 launches
Domain endings using US Census Bureau API
56 sites
- .com 55.36%
- .app 21.43%
- .ai 5.36%
- .us 5.36%
- .net 3.57%
- .org 3.57%
- .city 1.79%
- .co 1.79%
Share of new sites using US Census Bureau API
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026. Chart starts at first detection.
The shaded parts of the chart are measured against a different set of sites.
Grey: until 8 July 2026 we only tracked launches from launch platforms. From that date we crawl the wider web as well.
Amber: on 10 September 2026 we improved our infrastructure so we can index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from that date. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time, so it can step at these lines without the technology itself changing. For a single continuous measure, switch to launch platforms.
Data API leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
LocalLogic
|
0.06% | 24.45% |
| #2 | ▼2 |
The Movie Database
|
0.02% | 6.15% |
| #3 | ▲1 |
Daum Postcode
|
0.01% | 5.25% |
| #4 | ▲6 |
data.gouv.fr
|
0.01% | 3.40% |
| #5 | ▼2 |
ViaCEP
|
0.01% | 3.30% |
| … | ||||
| #42 | ▼13 |
US Census Bureau API
Current page
|
<0.01% | 0.47% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Data API tool.Among September launches it ranked #46 in Data API, down from #33 in August. All 1340 in Data API →
Often used with
| Tool | Sites |
|---|---|
| HSTS | 48 |
Google Fonts
|
29 |
Cloudflare DNS
|
27 |
OpenStreetMap
|
27 |
Supabase
|
21 |
Tools most often detected on the same sites as US Census Bureau API.
Recent launches we can show
43 of the 56 sites using US Census Bureau API are product launches we list individually. The other 13 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Moduz - Project Estimator
Fractal for SAP — AI-Native in 90 Days
Developer Tools
Landlord Record | Search Landlord & Rental Property Public Records
Fractal for SAP — AI-Native in 90 Days
Developer Tools
DeedScout — Florida Tax Deed Research, County by County
LineMaps — The Operating System for Utility Construction
Productivity
AcrePlan — Your Land. Your Plan.
Highland Power Watch — live outage map for Highland, IN
Rennie Barton Property Research: free West Michigan address lookup
Get BINformed — Know where it goes before you throw
CloseHand | Neighborhood Marketplace
Showing the most recent 12 of 43.
The StackScope API serves all 56 sites using US Census Bureau API, filterable and exportable, from £15 a month.