keyword

1940 census data

Monthly search volume and cost-per-click data for "1940 census data" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=1940+census+data&country=us" +--------------+------------------+ | volume | 50 | | cpc | $3.37 | | competition | 0.17 | | country | US | | updated | 2026-06-25 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
1940 census	2,900	$1.92	20/20
us census 1940	2,900	$1.99	20/20
1940 census search by name	1,900	$1.46	18/20
1940 us census	720	$1.66	12/20
1940 united states census records	480	$2.2	13/20
1940 us census records	480	$2.2	13/20
1940 census records	480	$2.2	12/20
census 1940	140	$1.99	20/20
1940 census free	50	$2	12/20
us census records 1940	40	$2.13	12/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=1940+census+data&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt