Photo: Chris Flook · CC BY-SA 4.0Living in Hardinsburg, IN: what to set up and who to call
Hardinsburg has no town government of its own, so Washington County runs its elections and most services, and its children attend West Washington School Corporation. Mainstream Fiber Networks is the only wired internet provider that reaches most of Hardinsburg.
I’m new in town
What to set up in Hardinsburg, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Hardinsburg.
Power comes from Duke Energy
Duke Energy (Duke Energy Indiana, LLC), an investor-owned utility, serves all of Hardinsburg. Its homes paid an average of 15.0¢ per kWh in 2025, about $149 a month (its average across Indiana).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Posey Township Water Corp.
Posey Township Water Corp. supplies Hardinsburg: about 18% of residents live in its service area. About 82% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Patoka Lake Regional Water as seller) and serves 3,500 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 2.0 ppb, below the 15 ppb action level that applied. The highest in five years was 5.2 ppb. That’s higher than 67% of similar systems’ latest results.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0 (EPA’s estimate). Violations are counted by the start of their compliance period. IN5288006.
5 home internet providers serve Hardinsburg
92% of 137 addresses can get 100/20 Mbps; 80% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Mainstream Fiber Networks | Fiber | 77% | 1,000/1,000 |
| Verizon | Fixed wireless | 87% | 300/20 |
| Outernet Broadband | Fixed wireless | 34% | 100/100 |
| Blueriver Networking Services | Fixed wireless | 19% | 25/5 |
| T-Mobile | Fixed wireless | 4% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Hardinsburg’s trash rules yet
Pickup rules, the dump and recycling in Hardinsburg.
Where your child goes to school
Public school districts and the school path by grade.
Hardinsburg is in West Washington School Corporation.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Hardinsburg is unincorporated, so Washington County is the local government.
Election office: FVAP local election office directory, updated Jul 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Hardinsburg is in ZIP code 47125
ZIP codes where Hardinsburg residents live, with the share of the town in each.
| ZIP | Post office name | Share of Hardinsburg | ZIP’s residents in Hardinsburg |
|---|---|---|---|
| 47125 | Hardinsburg, IN | 100% | 13% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Hardinsburg
Who supplies Hardinsburg’s drinking water, and has it had violations?
Posey Township Water Corp. (EPA ID IN5288006). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Hardinsburg?
Duke Energy (Duke Energy Indiana, LLC), an investor-owned utility. Its homes paid about 15.0¢ per kWh in 2025 (EIA).
What internet providers serve Hardinsburg?
Mainstream Fiber Networks, Verizon, Outernet Broadband, Blueriver Networking Services, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Hardinsburg?
47125. Census 2020 ZIP Code Tabulation Areas.
What school district is Hardinsburg in?
West Washington School Corporation.
How do I register to vote in Hardinsburg?
In Indiana you can register online until 29 days before Election Day, in person until 29 days before Election Day, or by mail (postmarked 29 days before). Elections here are run by the Washington County Circuit Court Clerk. Check your registration at indianavoters.in.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Nov 18, 2024 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.