keyword

il illinois

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

$ curl "https://api.seodata.dev/v1/keyword?q=il+illinois&country=us" +--------------+------------------+ | volume | 368,000 | | cpc | $1.99 | | competition | 0 | | country | US | | updated | 2026-06-24 | +--------------+------------------+

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
illinois	368,000	$2.5	20/20
il state	9,900	$0	17/20
state of illinois	9,900	$0.44	17/20
state il us	9,900	$0	16/20
state illinois	9,900	$0	16/20
state in illinois	9,900	$2.38	14/20
illinois usa	1,300	$0	15/20
the state of illinois	480	$0	20/20
illinois states	260	$0	18/20
illinois il	260	$0	15/20

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=il+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