Utilities & Infrastructure in Spearfish, SD

Water systems, internet access, and utility services

Internet & Broadband Access

Source: Census ACS

Broadband Access

92.0%

of households

Cable / Fiber / DSL

80.3%

of households

No Internet

5.1%

of households

Total Households

5,774

Internet Subscription Types

Cable, Fiber, or DSL

80.3%

Cellular Data Plan

83.6%

Satellite

3.7%

Cellular Only (no wired)

9.1%

No Internet Access

5.1%

Device Ownership

Source: Census ACS

Has Computer

94.3%

of households

Smartphone

87.8%

of households

Desktop / Laptop

78.5%

of households

Tablet

57.2%

of households

Any Computing Device

94.3%

Smartphone

87.8%

Desktop / Laptop

78.5%

Tablet

57.2%

Smartphone Only

11.2%

No Computer

5.7%

Percentage of households with each device type. Data from the U.S. Census Bureau ACS (2023 5-year estimates, tables B28001 & B28002).

Water Systems

Source: EPA SDWIS

Water Systems

Population Served

14,026

Violations (5yr)

System Name	Type	Source	Pop. Served	Violations
SPEARFISH	Community	Ground water	12,193	0
MOUNTAIN PLAINS 2 HOMEOWNERS ASSOC	Community	Ground water	268	1
SAINT ONGE SEWER & WATER CO	Community	Ground water	255	0
LANTERN ESTATES	Community	Ground water	192	0
WALNUT PARK	Community	Ground water	180	1
SPEARFISH VALLEY MOBILE ESTATES	Community	Ground water	163	2
KEN'S TRAILER COURT	Community	Ground water	110	0
WESTFIELD ADDITION	Community	Ground water	104	0
WESTVIEW HOMEOWNERS ASSOCIATION	Community	Ground water	103	0
LOURIE LANE HOMEOWNERS ASSOC	Community	Ground water	75	0
RIVERSIDE MOBILE HOME COURT	Community	Purchased ground water	75	0
MEADOW CREST SANITARY DISTRICT	Community	Ground water	63	0
DEBERG WELL USERS ASSOCIATION	Community	Ground water	54	0
SUNRISE HOMEOWNERS ASSOCIATION	Community	Ground water	50	0
SPRING CREEK PRESERVE	Community	Ground water	35	0
TWO BIT RANCH ESTATES	Community	Ground water	30	0
REYNOLDS COURT	Community	Ground water	28	1
CENTENNIAL HILLS HOME ASSOCIATION	Community	Ground water	25	0
BICENTENNIAL TRAILER COURT	Community	Ground water	23	0

92.0% of households in Spearfish have broadband internet access. 80.3% have cable, fiber, or DSL service. 9.1% rely solely on cellular data without a wired connection. 5.1% of households have no internet access. 11.2% use only a smartphone without a desktop or laptop. The area is served by 19 water systems, providing water to 14,026 people. A total of 5 water quality violations have been recorded over the past 5 years.