Pottawatomie County, Oklahoma · Shawnee
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With 22% of homes built before 1960 and about 13 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
Heavy rain days of an inch or more come about 12.3 times a year here, most often in May. A sump pump that hasn't run since last season is a common weak point.
Backups often follow heavy rain, which Pottawatomie County gets about 12.3 days a year, when storm water overloads sewer mains and pushes up through the lowest drain in the house.
In Pottawatomie County, 4.31 inches fell on the wettest day of the 2015–2024 record. Storms like that, and ice dams in snowy winters, cause most roof leaks.
10% of occupied homes in Pottawatomie County heat mainly with wood or propane, below the Oklahoma county median of 12.5%.
About 99 nights a year here stay at 65°F or warmer, so basements and crawl spaces can grow mold even without a leak.
Local risk profile
About 73,463 people live in Pottawatomie County, 788 square miles in eastern Oklahoma, in roughly 30,317 homes. Besides Shawnee, the county seat, the biggest communities are Tecumseh, McLoud and Bethel Acres. Half the homes here were built before 1980, half after.
51/100 Water Damage Risk Index: Elevated Pottawatomie County ranks 36 of 77 Oklahoma counties. See the statewide ranking and method.The three factors where Pottawatomie County ranks highest compared with other Oklahoma counties.
Pipe-freeze risk in Pottawatomie County sits near the middle of the state. From 2015–2024 it averaged 13 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 66 nights at or below 32°F. That ranks 38th of 77 counties.
On February 17, 2021 the low fell to about -10°F, and in the stretch ending February 2021 the county went 10 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
The freeze season here runs December to February, with January the coldest. If you travel then, leave the thermostat at 55°F or above and open sink cabinets on outside walls.
Freezing nights typically start around Nov 6 and end around Mar 30.
Heavy rain is a bigger factor here than in most of Oklahoma. The county gets about 42.4 inches of rain and melted snow a year, with 12.3 days of an inch or more (25th of 77). Those downpours cluster in April, May and July, when sump pumps and gutters are tested hardest. The wettest day on record brought 4.31 inches on June 18, 2015. The worst three-day stretch dropped 7.32 inches, ending November 5, 2024, the kind of soaking that overwhelms sump pumps and storm sewers.
About 62 days a year swing from below freezing at night to above freezing by day. Those freeze-thaw cycles feed ice dams on roofs, open cracks in foundations and driveways, and stress pipes that are already marginal.
Housing
Oklahoma's 77 counties range widely in housing age; Pottawatomie ranks 48th, with 51% of its homes built before 1980.
Since 2000 the county has added enough housing that 27% of homes are that new. Modern PEX and copper rarely fail on their own; the leaks come from connections, appliances and storms.
The 1980s and 1990s account for 23% of the county's homes. If yours is from those decades, look under the sinks and at the water heater for gray plastic pipe stamped PB, which is polybutylene and leak-prone.
Here 12% of housing is manufactured homes. Check the skirting and the heat tape on the main water line every fall, because that one exposed line is what freezes.
Beyond water
Pottawatomie County averages 99 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in May. The EPA recommends keeping indoor humidity below 60%, ideally 30 to 50%. Basements can pass 60% on their own in summer, so a dehumidifier matters even without a leak, and anything wet should be dried within 24 to 48 hours.
Mold remediation: what to expectBy main heating fuel, Pottawatomie County homes break down as 45% utility gas, 43% electric, 8% propane and 2% wood. Heating equipment, cooking and electrical failures cause most home fires nationally. Even a small kitchen fire can leave soot through the whole house, because smoke follows air currents into closets, ducts and attic space.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Pottawatomie County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Lincoln and Oklahoma get more pipe-freeze nights than Pottawatomie. Seminole County has the oldest housing nearby, with 56% of homes built before 1980.
By the numbers
| Factor | Pottawatomie | Oklahoma median | Rank |
|---|---|---|---|
| Homes built before 1960 | 22% | 24% | 48 of 77 |
| Homes built before 1980 | 51% | 55% | 48 of 77 |
| Homes built 2000 or later | 27% | 22% | 17 of 77 |
| Manufactured or mobile homes | 12% | 12% | 39 of 77 |
| Vacant homes | 11% | 17% | 67 of 77 |
| Wood or propane heat | 9.8% | 13% | 50 of 77 |
| Nights at 20°F or colder | 13/yr | 13/yr | 38 of 77 |
| Days with 1 inch+ of rain | 12/yr | 11/yr | 25 of 77 |
| Freeze-thaw days | 62/yr | 65/yr | 42 of 77 |
| Muggy nights (65°F+) | 99/yr | 98/yr | 37 of 77 |
Rank 1 is the highest value. Bars run from the lowest to the highest Oklahoma county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Pottawatomie County: freezing from December to February, heavy rain in April, May and July.
Sources: U.S. Census Bureau, ACS 2024 5-year estimates (2020-2024); weather from NOAA nClimGrid-Daily county averages (EpiNOAA), 2015–2024, averaged across the county; county boundaries from Census TIGER. Reviewed 2026-10-21. Methodology