seodata.dev

keyword

clark illinois

Monthly search volume and cost-per-click data for "clark illinois" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=clark+illinois&country=us" +--------------+------------------+ | volume | 590 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-28 | +--------------+------------------+
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
lewis and clark cc 14,800 $0.82 4/20
marshall illinois county 5,400 $1.27 4/20
clark county il 1,300 $0 16/20
clark county illinois 1,300 $0 14/20
clarkson county illinois 720 $0 9/20
lewis and clark illinois 590 $2.9 5/20
what county is marshall illinois in 90 $0 5/20
lewis and clark alton il 50 $1.03 5/20
where is clark county illinois 50 $0 5/20
clark co il 30 $0.32 7/20

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=clark+illinois&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