seodata.dev

keyword

us interstate highway system

Monthly search volume and cost-per-click data for "us interstate highway system" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=us+interstate+highway+system&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $0.03 | | competition | 0.01 | | country | US | | updated | 2026-06-05 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
interstate highway system 12,100 $0 20/20
us interstate highways 12,100 $0.1 20/20
eisenhower interstate 12,100 $0 19/20
eisenhower interstate system 12,100 $0 19/20
highway systems 12,100 $0.1 19/20
us interstate 12,100 $0 19/20
eisenhower interstate highway system 12,100 $0 18/20
interstate highways 5,400 $0 20/20
interstate highway 5,400 $0.18 19/20
us highway system 4,400 $0.05 19/20

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://app.seodata.dev/v1/keyword?q=us+interstate+highway+system&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