County · code 06021
Glenn CountyCalifornia
Glenn County is a county in California with its seat in Willows. It was created on May 5, 1891, and named after Hugh J. Glenn.
- Founded1891
- County seatWillows
- Named forHugh J. Glenn
- Land area1,314 sq mi + 13 sq mi water
- Population28,917 2020 Census
- Parcels mapped14,995 checked 15 October 2026
Where it is
Glenn on the map of California
California has 58 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1891 from Colusa County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Glenn County was created from Colusa County in 1891. It lost territory to Colusa County in 1893, gained territory from Mendocino County in 1907, exchanged territory with Lake County in 1909, and lost a small area to Butte County in 1915.
- 1891Glenn County created Glenn created from Colusa. Act passed 11 March 1891; referendum for or against creation of the new county held 5 May 1891. · Calif. Stats. 1891, 29th sess., ch. 94/pp. 98-101
- 1893
- 1907Gained territory Glenn gained from Mendocino. · Calif. Stats. 1907, 37th sess., ch. 113/p. 135
- 1909Exchanged territory Glenn exchanged with Lake. · Calif. Stats. 1909, 38th sess., ch. 211, sec. 2/p. 327
- 1915Lost territory Glenn lost small area in section 3, township 19 north, range 1 east to Butte. · Calif. Stats. 1915, 41st sess., ch. 532/p. 898
Land and parcels
What the maps cover in Glenn
Who publishes each layer, how good it is, and when we last checked.
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Parcels Fallback
Lot lines and tax-map numbers for 14,995 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey. This copy is a fallback, not the county's own: use it as a guide and check the official record.
edited 6 May 2022 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Glenn County yet.
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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
Glenn by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Glenn County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Glenn County.
See your own lot on these maps
Open Glenn 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.
Questions
Common questions about Glenn County
- When was Glenn County founded?
- Glenn County was founded in 1891, formed from Colusa County, and named after Hugh J. Glenn.
- What is the county seat of Glenn County?
- The county seat of Glenn County is Willows.
- Is there an online parcel map for Glenn County?
- Yes. A public source publishes a parcel map of 14,995 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Glenn County's boundary or name changed?
- Glenn County was created in 1891 from Colusa County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Butte County, Colusa County and Lake County.
- Is my lot in a flood zone?
- We do not have flood maps for Glenn County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby