Brookings County, South Dakota
7 ZIP codes · Avg score 58/100 · Grade C · Updated 2026-06-04
In recent monitoring cycles, Brookings County's 7 ZIP codes show a split record — several have documented water safety violations.
How Brookings County Compares
How Brookings County Compares
Brookings County scores 2 points below the South Dakota state average (60/100) and 10 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Brookings County, South Dakota
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.7 (asthma 9.8%, diabetes 8.5%)
Estimated additional annual cost per homeowner: $564, driven primarily by flood
Infrastructure: 0.366% avg pipe failure probability, 43% of ZIPs at high risk
65.7% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $564
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
3,831 housing units in Brookings County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Brookings County
Remediation costs are relatively manageable for most homeowners in Brookings County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Brookings County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Brookings County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | BROOKINGS-DEUEL RURAL WATER SYSTEM | 6,200 | 5 |
| 2 | Brookings Municipal Utilities | 23,377 | 2 |
| 3 | University Estates | 150 | 2 |
| 4 | North Brookings Water and Sanitary D | 48 | 2 |
| 5 | Southbrook Estates | 28 | 2 |
13 total water systems serve Brookings County.
All ZIP Codes in Brookings County
7 ZIP codes tracked in Brookings County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57002 | Aurora | 70 | B | 0 | $225K |
| 2 | 57071 | Volga | 70 | B | 0 | $244K |
| 3 | 57026 | Elkton | 66 | C | 1 | $204K |
| 4 | 57276 | White | 65 | C | 2 (1 health) | $178K |
| 5 | 57007 | Brookings | 52 | D | 2 | — |
| 6 | 57220 | Bruce | 45 | D | 0 | $196K |
| 7 | 57061 | Sinai | 40 | D | 0 | $92K |
Recommended Buyer Guides for Brookings County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 65.7% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Brookings County, South Dakota
Overview
Brookings County in South Dakota covers 7 ZIP codes with an average Home Safety Score of C (58/100).
3 of 7 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to South Dakota water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.