When was Camas County founded?

Camas County was founded in 1917, formed from Blaine County, and named after Camassia.

What is the county seat of Camas County?

The county seat of Camas County is Fairfield.

Is there an online parcel map for Camas County?

Yes. Idaho Department of Water Resources publishes a parcel map of 4,647 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Camas County's boundary or name changed?

Camas County was created in 1917 from Blaine County. Its boundary has been clarified one time since, with no change on the ground.

Is my lot in a flood zone?

We do not have flood maps for Camas County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

County · code 16025

Camas CountyIdaho

Camas County is a county in Idaho with its seat in Fairfield. The county was formed on February 6, 1917.

Founded1917
County seatFairfield
Named forCamassia
Land area1,074 sq mi + 4.5 sq mi water
Population1,077 2020 Census
Parcels mapped4,647 checked 16 October 2026

Open the free map Click any parcel in Camas County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated 19 October 2026

Census outline · seat marked

History

Formed in 1917 from Blaine County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Camas County was created from Blaine County and named after Camassia, a plant.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

1917
Camas County created Camas created from Blaine.
from Blaine
6 February 1917 · Id. Laws 1917, 14th sess., ch. 97/pp. 329-344
1985
Boundary clarified Camas boundaries clarified (no change).
no change
13 March 1985 · Id. Laws 1985, 48th leg., 1st. reg. sess., ch. 112/pp. 218-219

Land and parcels

What the maps cover in Camas

Who publishes each layer, how good it is, and when we last checked.

Parcels Good enough

Lot lines and tax-map numbers for 4,647 parcels from Idaho Department of Water Resources. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 16 October 2026
Address points Good enough

One point per address, 1,254 in all from Camas County.
edited 17 February 2026 · checked 13 October 2026
Buildings Reference

Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026

Official: from the office that keeps the record
Good enough: a reliable statewide or national copy
Fallback: a guide only; check the official record
Missing: nothing public found yet

People and land

Camas by the Census

Population

1,077 2020 Census count

Housing units

691 2020 Census count

Land area

1,074 square miles

Water area

4.5 square miles

People per sq mi

1 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Who to ask before you build, dig or sell

Official county pages only. We link to them; we do not copy them, because they change.

Inside a city or town, permits usually come from that city rather than the county.

Zoning and code

Ordinances – Camas County, Idahofrom camascounty.id.gov
Planning and Zoning – Camas County, Idahofrom camascounty.id.gov

County government

County government
The official website of Camas County.
camascounty.id.gov

See your own lot on these maps

Open Camas County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Open the free map no sign-in Pro early access

Questions

Common questions about Camas County

When was Camas County founded?: Camas County was founded in 1917, formed from Blaine County, and named after Camassia.
What is the county seat of Camas County?: The county seat of Camas County is Fairfield.
Is there an online parcel map for Camas County?: Yes. Idaho Department of Water Resources publishes a parcel map of 4,647 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Camas County's boundary or name changed?: Camas County was created in 1917 from Blaine County. Its boundary has been clarified one time since, with no change on the ground.
Is my lot in a flood zone?: We do not have flood maps for Camas County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

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