318 Saint Onge St, Rapid City, SD 57702 Property Records

Pennington County property record for 318 Saint Onge St, Rapid City, SD 57702

Property Summary

Property TypeDuplex
Details5 bd · 2 ba · 1,104 sqft · built 1947
Lot Size0.14 acres (6,098 sqft)
OwnerCompany Name on File
Last Sale$310,000 (Sep 2022)
Tax Bill$4,278 (2025)
Flood ZoneZone X (minimal risk)
APN20-34-359-007

Property Details

APN / Parcel Number

Primary APN20-34-359-007
Alternative APN
  • 23912

Interior

Bedrooms5 Beds
Full Baths2 Baths
Building Area1,104 sqft Total Area
Basement Area1,062 sqft
Finished Basement1,056 sqft

Exterior

Year BuiltBuilt 1947
Effective Year BuiltEffective 1947
Architectural StyleBungalow
Lot Area6,098 sqft (0.14 acres)
Deck Area25 sqft

Location & Zoning

Account Number23912
Street Address318 SAINT ONGE ST
CityRAPID CITY
StateSD
Zip57702-8158
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Legal DescriptionGREEN ACRES, BLOCK 9, LOT 17 - 18
Legal SubdivisionGREEN ACRES
Legal Block9
Legal Lot Number17-18
JurisdictionPENNINGTON SD
Township / Civil DivisionRAPID CITY
Census Block Group1
Census Block1003
Census Tract11200

Owner

318 Saint Onge St, a duplex, is owned by a company that bought it in September 2022.

Source: Pennington County records, as of September 28, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of RecordCompany Name on File
Mailing Address405 MILLSTONE WAY, RAPID CITY, SD 57701-2348
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 13, 2022 · Amount on File
Deed SaleSep 13, 2022 · Amount on File
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 318 Saint Onge St was $4,278.

Source: Pennington County assessment roll, as of September 14, 2026

Property Jurisdictions

TypeName
StateSouth Dakota
CountyPennington County
MunicipalityRapid City
Unified School DistrictRapid City School District 51-4 (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$320,500 (-) Land $34,600 Building $285,900
2025$4,278.00$320,500 Land $34,600 Building $285,900
2023$3,477.00 (+1.52%)$245,800 Land $31,400 Building $214,400
2022$3,425.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 318 Saint Onge St in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1997.

Source: FEMA National Flood Hazard Layer, effective June 11, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies2 in force
Nearby Flood Claims2 (1997–1999)
Most Recent ClaimJun 1999 · river or lake flooding

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

The area around 318 Saint Onge St has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemRAPID CITY
serves 72,009 people · EPA ID SD4600406
Water SourceSurface water
Last State InspectionMay 2024
Lead6 ppb (2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 79 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Midco
Cable
1,250 / 60
Bluepeak
Cable · Fiber in parts of the area
1,000 / 30
Verizon
Fixed Wireless
300 / 20
Wisp West
Fixed Wireless
100 / 20
AT&T
Fixed Wireless
100 / 20
T-Mobile
Fixed Wireless
100 / 20

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