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Big Rock: Infrastructure

Big Rock is served by the Camanche Water Supply water system, 3 fire stations, and 3 police facilities. Broadband at 100/20 Mbps reaches 100% of premises.

Water & Sewer

Active community water systems serving residents (EPA SDWIS). Each PWS has a unique ID and reports the population it serves.

Systems (5)

Camanche Water Supply
IA2322066
Grand Mound Water Supply
IA2341099
Maquoketa Municipal Water
IA4950029
Delmar Water Supply
IA2328024
Charlotte Water Works
IA2324016

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)13.40¢/kWh
Electricity · Customers1448818
Electricity · Revenue Millions$1,939
Electricity · Year2024

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).

Broadband · % of premises with 25/3 Mbps broadband100.0% (at Iowa median)
Broadband · % of premises with 100/20 Mbps broadband100.0% (at Iowa median)
Broadband · % of premises with 250/25 Mbps broadband100.0% (at Iowa median)
Broadband · % of premises with 1 Gbps / 100 Mbps broadband46.7% (vs Iowa 73.1%)
Broadband · Broadband-capable premises30
Mobile Broadband · 3G mobile coverage0.000000000
Mobile Broadband · 4G mobile coverage1.000000000 (at Iowa median)
Mobile Broadband · 5G mobile coverage1.000000000 (at Iowa median)
Mobile Home Parks Detail · County total2

Sources: FCC BDC Jun 2025 · FCC BDC Mobile 2024 · HIFLD / IRS BMF  ·  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)

CHARLOTTE FIRST RESPONDERS
102 CHARLES STREET · (563) 677-2710 · 4.5 mi
GUARDIAN GLASS INDUSTRIES EMERGENCY MEDICAL SERVICES
300 SOUTH 5TH AVENUE EAST · (563) 659-4000 · 7.9 mi
DEWITT AMBULANCE SERVICE
1118 11TH STREET · (563) 323-1000 · 8.0 mi

Fire Stations (3)

Charlotte Fire Department
102 Charles Street · 4.5 mi
Goose Lake Fire Department
1 School Lane · 5.2 mi
De Witt Volunteer Fire Department
711 10th Street · 7.8 mi

Police Stations (3)

DE WITT POLICE DEPARTMENT
606 9TH STREET · (563) 659-3145 · 7.8 mi
PRESTON POLICE DEPARTMENT
1 WEST GILLET · (563) 689-6868 · 10.4 mi
CAMANCHE POLICE DEPARTMENT
819 SOUTH WASHINGTON BOULEVARD · (563) 259-8575 · 12.0 mi

Transportation

Nearest airport, Amtrak, and transit stations. Distance is great-circle miles from the town centroid.

Nearest Airport · NameNemo Field
Nearest Airport · Typesmall airport
Nearest Airport · Distance4.4 mi

Sources: OurAirports.com  ·  Refreshed 2026-04-12

Dams & Hazards

Dams In County · Total14

Sources: NID 2026  ·  Refreshed 2026-04-12

Other

Infrastructure Quality · Broadband Coverage100%
Infrastructure Quality · Internet Adoption Pct30.0%
Infrastructure Quality · Municipal WaterYes
Infrastructure Quality · Strengthsexcellent broadband, municipal water
Natural Gas · Price Per Mcf$13
Natural Gas · Year2024
Nearest Amtrak · NameKewanee, Illinois
Nearest Amtrak · Distance52.3 mi
Nearest Weather Station · IdUS1IACN0002
Nearest Weather Station · NameCALAMUS 2.0 NE
Nearest Weather Station · Distance2.2 mi
Nearest Weather Station · Noaa Urlhttps://www.ncei.noaa.gov/cdo-web/datasets/GHCND/stations/US1IACN0002/detail
Plant Hardiness Zone · Zone6a
Plant Hardiness Zone · Min Temp F-10
Plant Hardiness Zone · Max Temp F-5

Sources: EIA state residential price + Census B25040 · HIFLD Amtrak Stations · NOAA GHCN-Daily station list — nearest by coordinates · Spatial interpolation from 10088 USDA PHZM data points