Western Oklahoma — drier, more exposed, with sustained wind loading and harder, faster temperature swings. County seat is Arnett.

Ellis County housing profile

Housing units	1,362
Built before 1980	75%
Built before 1940	14%
Built since 2000	9%
Utility gas heat	69%
Electric heat	28%
Bottled or tank propane	1.0%

Source: U.S. Census American Community Survey, tables B25034 and B25040, aggregated from place-level data for the 4 municipalities we hold data for in this county.

What that means for moisture and mold

Older stock here means uninsulated crawlspaces, plaster that holds moisture long after a leak is fixed, and bathrooms that were built without exhaust fans. Bare crawlspace soil evaporates upward continuously, and sealing it with a vapor barrier is the highest-return moisture fix available on a house of this age.

Water systems in this county

Oklahoma has 847 active community water systems across all 77 counties. Of those, 317 carry a violation or an open enforcement priority — roughly 37% statewide. That figure comes from the EPA ECHO compliance export.

[COUNTY-LEVEL SYSTEM DATA PENDING — the per-county ECHO extract will replace this paragraph with the named systems serving Ellis County and their current compliance status.]

Towns and communities in this county

Arnett, Shattuck, Gage, Fargo.

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Written by Jaylan Jones. Sooner Mold Remediation earns a referral fee when a call connects to a contractor. See our business-model disclosure.