County · code 48135
Ector CountyTexas
Ector County is in Texas and has its county seat in Odessa. The county was formed in 1887 and named after Mathew Ector.
- Founded1887
- County seatOdessa
- Named forMathew Ector
- Land area898 sq mi + 4 sq mi water
- Population165,171 2020 Census
- Parcels mapped77,313 checked 15 October 2026
Where it is
Ector on the map of Texas
Texas has 254 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1887 from Tom Green County and Midland County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Ector County was created on February 26, 1887, from Tom Green County but was not fully organized and was attached to Midland County for judicial, surveying, and other purposes. On January 6, 1891, Ector County was fully organized and detached from Midland County. In 1903, Crane County was temporarily attached to Ector County for judicial and surveying purposes, then became fully organized and detached on August 12, 1927.
- 1887Ector County created Ector created from Tom Green; Ector not fully organized, attached to Midland "for judicial, surveying, and all other purposes." · Texas Laws 1887, 20th leg., reg. sess., ch. 12, secs. 1a, 4/pp. 8-9
- 1891
- 1903
- 1927Changed Crane fully organized, detached from Ector. · Correspondence, Judy Crawford, District and County Clerk, Crane County, 3 July 2001
Land and parcels
What the maps cover in Ector
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 77,313 parcels from Ector County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 15 October 2026 -
Address points Official
One point per address, 68,263 in all from Texas Geographic Information Office (TxGIO, formerly TNRIS), a division of the Texas Water Development Board; StratMap program.
checked 14 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
Ector 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
Ector 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 Ector County.
See your own lot on these maps
Open Ector 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 Ector County
- When was Ector County founded?
- Ector County was founded in 1887, formed from Tom Green County and Midland County, and named after Mathew Ector.
- What is the county seat of Ector County?
- The county seat of Ector County is Odessa.
- Is there an online parcel map for Ector County?
- Yes. Ector County publishes a parcel map of 77,313 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Ector County's boundary or name changed?
- Ector County was created in 1887 from Tom Green County and Midland County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Crane County and Midland County.
- Is my lot in a flood zone?
- We do not have flood maps for Ector County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby