Ohio · 8 covered places · 10 ZIP codes
Plumbers in Marion County, OH
We cover 8 cities and towns in Marion County, Ohio, across 10 ZIP codes, including Marion, Prospect, Caledonia. About 65,000 people live in those ZIP codes. 46% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.
| Year built | Share of homes |
|---|---|
| Before 1940 | 30% |
| 1940–1959 | 16% |
| 1960–1979 | 28% |
| 1980–1999 | 15% |
| 2000 or later | 11% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Marion | 54,581 | 46% |
| Prospect | 3,566 | 41% |
| Caledonia | 2,506 | 40% |
| La Rue | 1,762 | 73% |
| New Bloomington | 1,005 | 59% |
| Waldo | 900 | 47% |
| Morral | 601 | 49% |
| Green Camp | 451 | 55% |
What goes wrong in Marion County homes
Pre-1960 homes: galvanized pipe and cast iron
46% of homes in Marion County's covered ZIP codes were built before 1960, 30% of them before 1940. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.
Natural gas in most homes
61% of occupied homes here heat with utility gas, so gas water heaters, ranges and dryers are common. That means gas line extensions for new appliances, flexible connector replacements and venting checks when a water heater is swapped. If you smell gas, leave first and call the gas utility from outside. See gas line repair.
Long, hard winters
74% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a long Ohio winter those are the lines that freeze and split. See frozen and burst pipe repair.
Hard water
Ohio water is generally hard. With 61% of homes here on gas, scale settles as sediment in gas water heater tanks, which then rumble and wear out early. See water softener installation.
Common plumbing work in Marion County
Other covered towns in Marion County
- Caledonia (1 ZIP)
- Green Camp (1 ZIP)
- La Rue (1 ZIP)
- Marion (3 ZIPs)
- Morral (1 ZIP)
- New Bloomington (1 ZIP)
- Prospect (1 ZIP)
- Waldo (1 ZIP)
Marion County plumbing FAQ
Which towns in Marion County do you cover?
8 places: Caledonia, Green Camp, La Rue, Marion, Morral, New Bloomington, Prospect, Waldo. Enter your ZIP code to confirm coverage for your street.
How old are homes in Marion County?
Across the covered ZIP codes, Census estimates put 46% of homes as built before 1960, 28% from 1960 to 1979, 15% from 1980 to 1999 and 11% in 2000 or later.
Who licenses plumbers in Marion County, OH?
The Ohio Construction Industry Licensing Board (OCILB) licenses plumbing contractors; many cities also register them.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Marion County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Marion County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.