Oakland County, Michigan
88 ZIP codes · Avg score 81/100 · Grade B · Updated
ZipCheckup grade for Oakland County: B.
This ZIP looks solid, with a few items worth a quick check.
Unlike many counties its size, Oakland County keeps violation rates low - all 88 ZIP codes score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.
How Oakland County Compares
How Oakland County Compares
Oakland County scores 4 points below the Michigan state average (85/100) and 8 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Oakland County, Michigan
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.8 (asthma 10.6%, diabetes 10.2%)
Estimated additional annual cost per homeowner: $1,086, driven primarily by flood
64.4% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Oakland County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 19 violations. Past 5 years: 48 total (48 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,086
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
542,266 housing units in Oakland 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 Oakland County
Remediation costs are relatively manageable for most homeowners in Oakland 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 Oakland County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Oakland County
8 community water systems serving Oakland County.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- B
- B
91 total water systems serve Oakland County.
Systems with the most violations in Oakland County
5 water systems with recorded EPA violations.
- C
- B
- B
- B
- B
All ZIP Codes in Oakland County
88 ZIP codes tracked in Oakland County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 48030 | Hazel Park | 83 | B | 0 | $141K |
| 2 | 48067 | Royal Oak | 83 | B | 1 | $309K |
| 3 | 48070 | Huntington Woods | 83 | B | 2 | $471K |
| 4 | 48071 | Madison Heights | 83 | B | 2 | $190K |
| 5 | 48083 | Troy | 83 | B | 1 | $293K |
| 6 | 48084 | Troy | 83 | B | 1 | $420K |
| 7 | 48085 | Troy | 83 | B | 0 | $395K |
| 8 | 48095 | Washington | 83 | B | 0 | $393K |
| 9 | 48098 | Troy | 83 | B | 0 | $485K |
| 10 | 48301 | Bloomfield Hills | 83 | B | 0 | $671K |
| 11 | 48302 | Bloomfield Hills | 83 | B | 1 | $624K |
| 12 | 48306 | Rochester | 83 | B | 0 | $522K |
| 13 | 48331 | Farmington | 83 | B | 0 | $383K |
| 14 | 48335 | Farmington | 83 | B | 0 | $367K |
| 15 | 48342 | Pontiac | 83 | B | 0 | $91K |
| 16 | 48356 | Highland | 83 | B | 1 | $315K |
| 17 | 48357 | Highland | 83 | B | 2 | $327K |
| 18 | 48363 | Oakland | 83 | B | 0 | $568K |
| 19 | 48374 | Novi | 83 | B | 0 | $552K |
| 20 | 48375 | Novi | 83 | B | 0 | $349K |
| 21 | 48377 | Novi | 83 | B | 1 | $332K |
| 22 | 48380 | Milford | 83 | B | 0 | $439K |
| 23 | 48017 | Clawson | 82 | B | 4 | $252K |
| 24 | 48034 | Southfield | 82 | B | 4 | $259K |
| 25 | 48072 | Berkley | 82 | B | 5 | $289K |
| 26 | 48075 | Southfield | 82 | B | 4 | $219K |
| 27 | 48220 | Ferndale | 82 | B | 4 | $230K |
| 28 | 48237 | Oak Park | 82 | B | 5 | $199K |
| 29 | 48307 | Rochester | 82 | B | 4 | $329K |
| 30 | 48323 | West Bloomfield | 82 | B | 4 | $467K |
| 31 | 48328 | Waterford | 82 | B | 3 (1 health) | $211K |
| 32 | 48329 | Waterford | 82 | B | 3 (1 health) | $246K |
| 33 | 48336 | Farmington | 82 | B | 4 | $248K |
| 34 | 48340 | Pontiac | 82 | B | 3 (1 health) | $106K |
| 35 | 48382 | Commerce Township | 82 | B | 6 | $405K |
| 36 | 48383 | White Lake | 82 | B | 4 | $305K |
| 37 | 48009 | Birmingham | 81 | B | 6 (2 health) | $712K |
| 38 | 48025 | Franklin | 81 | B | 6 | $515K |
| 39 | 48073 | Royal Oak | 81 | B | 6 | $303K |
| 40 | 48165 | New Hudson | 81 | B | 5 | $352K |
| 41 | 48304 | Bloomfield Hills | 81 | B | 5 (2 health) | $482K |
| 42 | 48309 | Rochester | 81 | B | 6 | $395K |
| 43 | 48327 | Waterford | 81 | B | 5 (1 health) | $242K |
| 44 | 48341 | Pontiac | 81 | B | 5 (1 health) | $125K |
| 45 | 48362 | Lake Orion | 81 | B | 7 | $314K |
| 46 | 48386 | White Lake | 81 | B | 5 (1 health) | $295K |
| 47 | 48390 | Walled Lake | 81 | B | 7 | $288K |
| 48 | 48054 | East China | 80 | B | 7 (2 health) | $277K |
| 49 | 48076 | Southfield | 80 | B | 9 | $251K |
| 50 | 48167 | Northville | 80 | B | 5 | $431K |
| 51 | 48326 | Auburn Hills | 80 | B | 7 (2 health) | $235K |
| 52 | 48359 | Lake Orion | 80 | B | 9 | $330K |
| 53 | 48360 | Lake Orion | 80 | B | 9 | $362K |
| 54 | 48381 | Milford | 80 | B | 10 | $387K |
| 55 | 48348 | Clarkston | 79 | B | 13 | $421K |
| 56 | 48393 | Wixom | 79 | B | 10 | $309K |
| 57 | 48442 | Holly | 70 | B | 23 (3 health) | $253K |
| 58 | 48371 | Oxford | 67 | C | 69 (2 health) | $353K |
| 59 | 48346 | Clarkston | 65 | C | 3 (1 health) | $295K |
| 60 | 48007 | Troy | — | — | — | |
| 61 | 48012 | Birmingham | — | — | — | |
| 62 | 48037 | Southfield | — | — | — | |
| 63 | 48050 | New Haven | — | — | $329K | |
| 64 | 48068 | Royal Oak | — | — | — | |
| 65 | 48069 | Pleasant Ridge | — | — | 0 | $436K |
| 66 | 48086 | Southfield | — | — | — | |
| 67 | 48099 | Troy | — | — | — | |
| 68 | 48303 | Bloomfield Hills | — | — | — | |
| 69 | 48308 | Rochester | — | — | — | |
| 70 | 48320 | Keego Harbor | — | — | 5 (1 health) | $318K |
| 71 | 48321 | Auburn Hills | — | — | — | |
| 72 | 48322 | West Bloomfield | — | — | 3 | $374K |
| 73 | 48324 | West Bloomfield | — | — | 8 (2 health) | $408K |
| 74 | 48325 | West Bloomfield | — | — | — | |
| 75 | 48330 | Drayton Plains | — | — | — | |
| 76 | 48332 | Farmington | — | — | — | |
| 77 | 48333 | Farmington | — | — | — | |
| 78 | 48343 | Pontiac | — | — | — | |
| 79 | 48347 | Clarkston | — | — | — | |
| 80 | 48350 | Davisburg | — | — | 11 | $352K |
| 81 | 48361 | Lake Orion | — | — | — | |
| 82 | 48366 | Lakeville | — | — | — | |
| 83 | 48367 | Leonard | — | — | 1 | $387K |
| 84 | 48370 | Oxford | — | — | $393K | |
| 85 | 48376 | Novi | — | — | — | |
| 86 | 48387 | Union Lake | — | — | — | |
| 87 | 48391 | Walled Lake | — | — | — | |
| 88 | 48462 | Ortonville | — | — | 3 | $318K |
Recommended Buyer Guides for Oakland County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Water Filters for PFAS — PFAS detected in 1 ZIP code
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 64.4% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
Deep Dive Reports
Detailed analysis for Oakland County, Michigan
Overview
Oakland County in Michigan covers 88 tracked ZIP records with an average Home Safety Score of B (81/100) across 59 scored records.
52 of 66 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 12 health-based violations appear in the available health breakdown.
← Back to Michigan Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.