Photo: JoeyBLS · Public domainLiving in St. John Township, IN: what to set up and who to call
St. John Township spans 5 ZIP codes; 46375 holds the most residents (35%). Trains stop in St. John Township, at Dyer.
I’m new in town
What to set up in St. John Township, 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 St. John Township.
Power comes from NIPSCO
NIPSCO (Northern Indiana Public Service Co.), an investor-owned utility, serves all of St. John Township. Its homes paid an average of 22.1¢ per kWh in 2025, about $148 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 Schererville Water Department
Schererville Water Department supplies St. John Township: about 47% of residents live in its service area. St. John Municipal Water Utility serves another 25%. Dyer Water Department serves another 24%. About 4% 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 Indiana American Water - Northwest as seller) and serves 30,000 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 1.0 ppb, below the 15 ppb action level that applied. That’s lower than 59% 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. Violations are counted by the start of their compliance period. IN5245041.
6 home internet providers serve St. John Township
100% of 25,406 addresses can get 100/20 Mbps; 35% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| AT&T | DSL, Fixed wireless, Fiber | 90% | 5,000/5,000 |
| Surf Internet | Fiber | 21% | 8,000/8,000 |
| NITCO | Fixed wireless | 86% | 10/1 |
| Verizon | Fixed wireless | 72% | 300/20 |
| T-Mobile | Fixed wireless | 47% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
GMI picks up trash in St. John Township
Pickup days, the drop-off and recycling in St. John Township, from the town’s own site.
Sorted recycling
Separate your recyclables by material.
We couldn’t find pickup days or drop-off hours. Check stjohnin.gov →
From stjohnin.gov, the town’s official site, checked Oct 21, 2026; pages dated 2026, 2026-02-05T17:50:55+00:00, 2026-04-06T15:52:45+00:00, 2026-10-21T16:28:35+00:00. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
St. John Township is in Lake Central School Corporation.
ASchool gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Jul 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
St. John Township spans 5 ZIP codes
ZIP codes where St. John Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of St. John Township | ZIP’s residents in St. John Township |
|---|---|---|---|
| 46375 | Schererville, IN | 35% | 100% |
| 46311 | Dyer, IN | 29% | 90% |
| 46373 | Saint John, IN | 19% | 73% |
| 46307 | Crown Point, IN | 16% | 16% |
| 46319 | Griffith, IN | 1% | 5% |
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.
Train: OpenStreetMap (© OpenStreetMap contributors). ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in St. John Township
Who supplies St. John Township’s drinking water, and has it had violations?
Schererville Water Department (EPA ID IN5245041). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 1.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in St. John Township?
NIPSCO (Northern Indiana Public Service Co.), an investor-owned utility. Its homes paid about 22.1¢ per kWh in 2025 (EIA).
What internet providers serve St. John Township?
Xfinity, AT&T, Surf Internet, NITCO, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in St. John Township?
46375 (35%), 46311 (29%), 46373 (19%), 46307 (16%), 46319 (1%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is St. John Township in?
Lake Central School Corporation.
How do I register to vote in St. John Township?
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 Lake County Board of Elections & Registration. 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: St. John Township’s own website (stjohnin.gov), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.