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County · code 06027

Inyo CountyCalifornia

Inyo County is a California county formed in 1866 from Mono and Tulare counties, with its seat in Independence.

  • Founded1866
  • County seatIndependence
  • Land area10,197 sq mi + 30 sq mi water
  • Population19,016 2020 Census
  • Parcels mapped15,968 checked 14 October 2026
Open the free map Click any parcel in Inyo County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Esmeralda, NVTulareKernNye, NVMonoSan BernardinoFresnoClark, NV Independence Census outline · seat marked

Where it is

Inyo on the map of California

California has 58 counties and county equivalents, each with its own records office. Shapes with a page are links.

Alameda CountyAlpine CountyAmador CountyButte CountyCalaveras CountyColusa CountyContra Costa CountyDel Norte CountyEl Dorado CountyFresno CountyGlenn CountyHumboldt CountyImperial CountyKern CountyKings CountyLake CountyLassen CountyLos Angeles CountyMadera CountyMarin CountyMariposa CountyMendocino CountyMerced CountyModoc CountyMono CountyMonterey CountyNapa CountyNevada CountyOrange CountyPlacer CountyPlumas CountyRiverside CountySacramento CountySan Benito CountySan Bernardino CountySan Diego CountySan Francisco CountySan Joaquin CountySan Luis Obispo CountySan Mateo CountySanta Barbara CountySanta Clara CountySanta Cruz CountyShasta CountySierra CountySiskiyou CountySolano CountySonoma CountyStanislaus CountySutter CountyTehama CountyTrinity CountyTulare CountyTuolumne CountyVentura CountyYolo CountyYuba CountyInyo County Inyo
Counties of California · Inyo highlighted

History

Formed in 1866 from Mono County, Tulare County and Coso County

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

Inyo County was created on March 22, 1866, from portions of Mono and Tulare counties. The county gained territory from Mono in 1870 and from Kern and San Bernardino in 1873. A boundary dispute with San Bernardino County, dating from 1947, was resolved in 1957 when Inyo lost a small area.

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

  1. 1866
    Inyo County created Inyo created from Mono and Tulare. Inyo boundaries were identical to those of Coso (proposed).
    from Monofrom Tularefrom Coso
    · Calif. Stats. 1865, 16th sess., ch. 316/pp. 355-358
  2. 1870
    Gained territory Inyo gained from Mono.
    from Mono
    · Calif. Stats. 1869, 18th sess., ch. 323/p. 421
  3. 1873
    Gained territory Inyo gained from Kern and San Bernardino.
    from Kernfrom San Bernardino
    · Political Code 1872, 1: secs. 3941-3943/pp. 139-140
  4. 1947
    Changed Boundary between Inyo and San Bernardino placed in dispute. Section 23136 of Political Code was revised to authorize San Bernardino to gain from Inyo a strip of territory one and one-half miles wide between the San Bernardino Meridian and the state line. The companion description of Inyo boundaries in section 23114 authorized no such change (no change)..
    San Bernardino
    · Calif. Stats. 1947, reg. sess., ch. 424, secs. 23114, 23136/pp. 1050, 1068
  5. 1957
    Lost territory Inyo lost small area to San Bernardino; boundaries of Inyo and San Bernardino clarified, ending boundary dispute dating from 1947.
    to San Bernardino
    · Calif. Stats. 1957, reg. sess., ch. 2382/p. 4119
  6. c. 1972
    Changed Boundary between Inyo and San Bernardino was adjusted.
    San Bernardino
    · Correspondence, California State Board of Equalization, 25 July 2002

Land and parcels

What the maps cover in Inyo

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

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

Inyo by the Census

Population
19,016 2020 Census count
Housing units
9,469 2020 Census count
Land area
10,197 square miles
Water area
30 square miles
People per sq mi
2 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.

Records

Permits

Zoning and code

County government

See your own lot on these maps

Open Inyo 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.

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Questions

Common questions about Inyo County

When was Inyo County founded?
Inyo County was founded in 1866, formed from Mono County, Tulare County and Coso County.
What is the county seat of Inyo County?
The county seat of Inyo County is Independence.
Is there an online parcel map for Inyo County?
Yes. Inyo County publishes a parcel map of 15,968 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Inyo County's boundary or name changed?
Inyo County was created in 1866 from Mono County, Tulare County and Coso County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving San Bernardino County, Kern County and Mono County.
Who issues building permits in Inyo County?
The county's page on building permits: Use Permits. Inside a city or town, ask that city first.
Who issues septic and well permits in Inyo County?
The county's page on septic systems and wells: Health department: septic and well.
Is my lot in a flood zone?
We do not have flood maps for Inyo County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door