We have 3,710 parcels recorded as septic in ZIP 33837 (Polk County, Florida), of which 1,446 are confirmed by a county permit record and the rest are inferred from available evidence.
Records for this ZIP are held by Polk County, Florida. Our county page lists where they are kept, whether you can search them yourself, and how many we hold: Septic records in Polk County, Florida.
Counts are of parcels recorded as septic in our data, not an estimate of every property in this ZIP. We do not hold sewer classification for Florida, so no septic-versus-sewer share is implied. Last verified 2026-08-31.
We have 3,710 parcels recorded as septic in ZIP 33837, 1,446 of them confirmed by a county permit record. That is a count of parcels in our records, not an estimate of every property in the ZIP, and we do not hold sewer classification for Florida so this is not a septic-versus-sewer split.
Septic records in Florida are held by the county. Properties in this ZIP fall in Polk County, Florida.