Seneca: Infrastructure
Day-to-day services in Seneca include the Seneca water system, 3 fire stations, and 3 police facilities. Broadband at 100/20 Mbps reaches 100% of premises.
- 97% broadband gap — share of premises without gigabit service (vs Illinois 23%).
Water & Sewer
Active community water systems serving residents (EPA SDWIS). Each PWS has a unique ID and reports the population it serves.
Systems (1)
Power & Energy
Electric utility data from EIA Form 861 — provider, residential rate, customer count, and revenue. Rate reflects the average residential ¢/kWh.
| Electricity · Electricity rate (¢/kWh) | 15.87¢/kWh |
|---|---|
| Electricity · Customers | 5392477 |
| Electricity · Revenue Millions | $7,118 |
| Electricity · Year | 2024 |
Sources: EIA Annual Retail Sales 2023 · Refreshed 2026-04-12
Internet & Mobile
Broadband and mobile coverage from FCC Form 477. Percentages reflect the share of premises that can subscribe to service at the listed speed (not necessarily the share who do).
Facilities (2)
| Broadband · % of premises with 25/3 Mbps broadband | 100.0% (at Illinois median) |
|---|---|
| Broadband · % of premises with 100/20 Mbps broadband | 100.0% (at Illinois median) |
| Broadband · % of premises with 250/25 Mbps broadband | 100.0% (at Illinois median) |
| Broadband · % of premises with 1 Gbps / 100 Mbps broadband | 3.4% (vs Illinois 76.8%) |
| Broadband · Broadband-capable premises | 1,164 |
| Mobile Broadband · 3G mobile coverage | 0.000000000 |
| Mobile Broadband · 4G mobile coverage | 1.000000000 (at Illinois median) |
| Mobile Broadband · 5G mobile coverage | 0.957317073 (vs Illinois 100.0%) |
Sources: FCC BDC Jun 2025 · FCC BDC Mobile 2024 · Refreshed 2026-04-12
Public Safety Stations
Fire, EMS, and police stations within range — HIFLD federal datasets. Distance is great-circle from the town centroid.
Ems Stations (3)
Fire Stations (3)
Police Stations (3)
Transportation
Nearest airport, Amtrak, and transit stations. Distance is great-circle miles from the town centroid.
| Nearest Airport · Name | Spring Brook Airport |
|---|---|
| Nearest Airport · Type | small airport |
| Nearest Airport · Distance | 1.6 mi |
Sources: OurAirports.com · Refreshed 2026-04-12
Dams & Hazards
| Dams In County · Total | 6 |
|---|
Sources: NID 2026 · Refreshed 2026-04-12
Other
| Infrastructure Quality · Broadband Coverage | 100% |
|---|---|
| Infrastructure Quality · Internet Adoption Pct | 92.0% |
| Infrastructure Quality · Municipal Water | Yes |
| Infrastructure Quality · Strengths | excellent broadband, municipal water |
| Natural Gas · Price Per Mcf | $13 |
| Natural Gas · Year | 2024 |
| Nearest Amtrak · Name | Dwight, Illinois |
| Nearest Amtrak · Distance | 17.8 mi |
| Nearest Transit · Name | Joliet |
| Nearest Transit · Distance | 14.9 mi |
| Nearest Weather Station · Id | US1ILLS0051 |
| Nearest Weather Station · Name | SENECA 1.1 NNE |
| Nearest Weather Station · Distance | 0.6 mi |
| Nearest Weather Station · Noaa Url | https://www.ncei.noaa.gov/cdo-web/datasets/GHCND/stations/US1ILLS0051/detail |
| Plant Hardiness Zone · Zone | 6a |
| Plant Hardiness Zone · Min Temp F | -10 |
| Plant Hardiness Zone · Max Temp F | -5 |
Sources: EIA state residential price + Census B25040 · HIFLD Amtrak Stations · HIFLD Public Transit Stations · NOAA GHCN-Daily station list — nearest by coordinates · Spatial interpolation from 10088 USDA PHZM data points