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Lycoming County, Pennsylvania
A shallow water table limits basements on 19% of Lycoming County's mapped land. Shrink-swell clay limits houses without basements on under 1%.
None of the county is in drought on the October 13, 2026 Drought Monitor map. FEMA's flood data list 174 flood losses here since 2016, 74% of them in buildings with basements. 70% of homes were built before 1980, against 50% nationally; the median home dates from 1963.
Data as of October 13, 2026 · sources
expansive clay: shrink-swell limits slab homes
high water table: limits basements
in drought, October 13, 2026
of homes built before 1980
Soil under Lycoming County
| Expansive clay (limits slab homes) | under 0.1% |
| High water table (limits basements) | 19.3% |
| Septic fields very limited | 92.2% |
| Clay swell (LEP, by area) | 1.3% |
| High-swell land (LEP 6%+) | under 0.1% |
| Mapped soil | 796,013 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Oquaga | 15% | n/a |
| Dekalb | 13% | n/a |
| Lordstown | 6% | n/a |
| Leck Kill | 6% | n/a |
| Clymer | 5% | n/a |
| Weikert | 5% | under 1% |
How we count · survey areas PA081 (2025-09-03)
What the numbers mean here
On 19% of Lycoming County's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
Rain over the 12 months to August 2026: 39.10 in, 5.92 in below the 1991-2020 average year of 45.02 in.
USDA rates 92% of the land very limited for septic absorption fields.
Drought
0% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 19 of the last 52 weeks; the most was 100% of its area, on the February 17, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 0% |
| D1 moderate drought or worse | 0% |
| D2 severe or worse | 0% |
| D3 extreme or worse | 0% |
| D4 exceptional | 0% |
Flood losses since 2016
174 flood losses since 2016, $2.8 million paid. The worst year was 2016, with 66. Foundations of the buildings, where recorded: 74% basements, 8% slabs, 3% crawl spaces, 15% elevated. Median water depth outside the building: 23 in.
| Year | Flood losses |
|---|---|
| 2016 | 66 |
| 2017 | 2 |
| 2018 | 35 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 52 |
| 2025 | 2 |
| 2026 to date | 7 |
Rain
| Average year, 1991-2020 | 45.02 in |
| 12 months to August 2026 | 39.10 in (-5.92) |
| 2025 | 38.31 in (-6.71) |
| Wettest year since 1895 | 2011: 68.97 in |
| Driest year since 1895 | 1930: 28.32 in |
| Days with 1 inch or more, normal at WILLIAMSPORT (10 mi away) | 9.2 |
Homes
| Housing units | 52,715 |
| Median year built | 1963 |
| Built before 1980 | 70% |
| Built 2000 or later | 12% |
| Owner-occupied | 69% |
| Median value, owner-occupied | $202,200 |
| Single-family detached | 69% |
What repairs cost
Published ranges from cost guides, not quotes. More sources, and where they disagree.
Nearby counties
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Union County, PA | 26 mi | 1% | 38% |
| Sullivan County, PA | 29 mi | 0% | 53% |
| Montour County, PA | 30 mi | 1% | 36% |
| Clinton County, PA | 31 mi | 1% | 35% |
| Tioga County, PA | 31 mi | 0% | 49% |
| Northumberland County, PA | 39 mi | under 1% | 27% |
| Columbia County, PA | 40 mi | 0% | 20% |
| Snyder County, PA | 41 mi | 1% | 28% |
Sources: USDA SSURGO (September 3, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status