US Census Bureau API on new websites
Public API serving United States census and demographic datasets.
- Sites using US Census Bureau API
- 66
- since Jun 2026
- Last 30 days
- 0.0%
-
of new sites, to Oct 19
no change on the 30 days before - Last 7 days
- 0.0%
- of new sites, 7-day average
no change on the week before
| First seen | Jun 24, 2026 |
|---|---|
| Last seen | Oct 15, 2026 |
| Website | census.gov |
What we found
- US Census Bureau API appeared on 7 new sites in the last 30 days.[1]
- Half of new US Census Bureau API sites also use OpenStreetMap.
Share of new sites using US Census Bureau API
The line is the 7-day average share of new sites that use US Census Bureau API, since 10 September.
Who uses US Census Bureau API
| Type | Sites | Share | Bar |
|---|---|---|---|
| Finance | 5 | 26.3% | |
| Productivity | 5 | 26.3% | |
| Health | 3 | 15.8% | |
| Developer Tools | 2 | 10.5% | |
| AI | 1 | 5.3% | |
| Education | 1 | 5.3% | |
| Games | 1 | 5.3% | |
| Marketing | 1 | 5.3% |
| Ending | Sites | Share | Bar |
|---|---|---|---|
| .com | 38 | 57.6% | |
| .app | 12 | 18.2% | |
| .org | 4 | 6.1% | |
| .ai | 3 | 4.6% | |
| .us | 3 | 4.6% | |
| .co | 2 | 3.0% | |
| .net | 2 | 3.0% | |
| .city | 1 | 1.5% |
Data API on new sites
| # | Movement | Tool | Share of category | Bar | |
|---|---|---|---|---|---|
| 1 | – |
LocalLogic
|
22.9% | ||
| 2 | ▼1 |
The Movie Database
|
6.8% | ||
| 3 | ▲1 |
Daum Postcode
|
5.4% | ||
| 4 | ▼1 |
ViaCEP
|
3.6% | ||
| 5 | ▼1 |
Frankfurter
|
3.2% | ||
| … | |||||
| 37 | ▼12 |
US Census Bureau API
|
0.5% | ||
All-time shares across the new sites we track: of all of them, and of the sites using any Data API tool. Among September launches it ranked #42 in Data API, down from #30 in August. All 1509 in Data API
Often used with US Census Bureau API
| Tool | Sites with both | vs all new sites |
|---|---|---|
OpenStreetMap
|
30 | 158x |
Tools that turn up far more often on US Census Bureau API sites than on new sites in general, and how many times as common each one is there.
Recently launched products built on US Census Bureau API
48 of the 66 sites using US Census Bureau API are product launches we list individually. The other 18 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.
United States
Showing the most recent 12 of 48.
Watches, exports and the API give you all 66 sites using US Census Bureau API, from £15 a month.
Notes
- These figures cover websites that went live since April 2026, not the web as a whole.
How this page is made
FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards US Census Bureau API when we detect US Census Bureau API on it at that look.
Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites