ZIP 45013 falls in Butler County, Ohio, where we hold 1 septic-related documents. We have not classified septic-versus-sewer status for this county, and we do not have a per-ZIP parcel count -- see the county page for what we hold and where the records are kept.
ZCTA 45013 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Butler County, Ohio | 97% | 1 | — | — |
| Hamilton County, Ohio | 3% | 161,344 | — | — |
2 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| Black Water Septic Pros | Hamilton | (513) 623-1792 | 5.0 (1) |
| Smallwood Septic Solutions | Hamilton | (513) 844-1717 | 4.5 (2) |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We have not measured septic-versus-sewer status for this county yet.
ZIP 45013 spans 2 counties: Butler County, Ohio, Hamilton County, Ohio.