Riverside County, California
100 ZIP codes · Avg score 70/100 · Grade B · Updated
ZipCheckup grade for Riverside County: B.
This ZIP looks solid, with a few items worth a quick check.
Water systems in Riverside County serve 100 ZIP codes with few reported safety events.
How Riverside County Compares
How Riverside County Compares
Riverside County scores 6 points below the California state average (76/100) and 3 points below 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: Riverside County, California
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.1 (asthma 9.5%, diabetes 12.4%)
Estimated additional annual cost per homeowner: $3,424, driven primarily by wildfire
44.9% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Riverside County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 28 violations. Past 5 years: 74 total (74 health-based). Health-based violations are declining versus the prior 2-year window.
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: $3,424
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
846,355 housing units in Riverside 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 Riverside County
Remediation costs are relatively manageable for most homeowners in Riverside 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 Riverside County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Riverside County
8 community water systems serving Riverside County.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- C
- B
53 total water systems serve Riverside County.
Systems with the most violations in Riverside County
5 water systems with recorded EPA violations.
- C
- D
- B
- D
All ZIP Codes in Riverside County
100 ZIP codes tracked in Riverside County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 91752 | Mira Loma | 75 | B | 0 | $648K |
| 2 | 92210 | Indian Wells | 75 | B | 0 | $1002K |
| 3 | 92211 | Palm Desert | 75 | B | 0 | $536K |
| 4 | 92234 | Cathedral City | 75 | B | 0 | $421K |
| 5 | 92240 | Desert Hot Springs | 75 | B | 1 | $294K |
| 6 | 92241 | Desert Hot Springs | 75 | B | 2 | $93K |
| 7 | 92253 | La Quinta | 75 | B | 1 | $613K |
| 8 | 92254 | Mecca | 75 | B | 0 | $207K |
| 9 | 92258 | North Palm Springs | 75 | B | 1 | — |
| 10 | 92260 | Palm Desert | 75 | B | 0 | $464K |
| 11 | 92262 | Palm Springs | 75 | B | 1 | $601K |
| 12 | 92264 | Palm Springs | 75 | B | 0 | $498K |
| 13 | 92270 | Rancho Mirage | 75 | B | 0 | $748K |
| 14 | 92276 | Thousand Palms | 75 | B | 0 | $261K |
| 15 | 92504 | Riverside | 75 | B | 0 | $502K |
| 16 | 92505 | Riverside | 75 | B | 0 | $521K |
| 17 | 92506 | Riverside | 75 | B | 0 | $635K |
| 18 | 92508 | Riverside | 75 | B | 0 | $657K |
| 19 | 92509 | Riverside | 75 | B | 0 | $501K |
| 20 | 92518 | March Air Reserve Base | 75 | B | 0 | — |
| 21 | 92530 | Lake Elsinore | 75 | B | 0 | $467K |
| 22 | 92548 | Homeland | 75 | B | 0 | $217K |
| 23 | 92551 | Moreno Valley | 75 | B | 0 | $436K |
| 24 | 92553 | Moreno Valley | 75 | B | 1 | $413K |
| 25 | 92555 | Moreno Valley | 75 | B | 0 | $543K |
| 26 | 92571 | Perris | 75 | B | 0 | $431K |
| 27 | 92585 | Sun City | 75 | B | 0 | $500K |
| 28 | 92586 | Sun City | 75 | B | 0 | $338K |
| 29 | 92587 | Sun City | 75 | B | 0 | $594K |
| 30 | 92596 | Winchester | 75 | B | 0 | $616K |
| 31 | 92201 | Indio | 74 | B | 3 | $373K |
| 32 | 92203 | Indio | 74 | B | 3 | $497K |
| 33 | 92225 | Blythe | 74 | B | 4 | $197K |
| 34 | 92501 | Riverside | 74 | B | 1 | $466K |
| 35 | 92532 | Lake Elsinore | 74 | B | 1 | $553K |
| 36 | 92545 | Hemet | 74 | B | 2 | $335K |
| 37 | 92557 | Moreno Valley | 74 | B | 1 | $472K |
| 38 | 92570 | Perris | 74 | B | 1 | $420K |
| 39 | 92583 | San Jacinto | 74 | B | 2 (1 health) | $340K |
| 40 | 92584 | Menifee | 74 | B | 2 | $562K |
| 41 | 92879 | Corona | 74 | B | 2 | $592K |
| 42 | 92882 | Corona | 74 | B | 2 | $654K |
| 43 | 92543 | Hemet | 73 | B | 4 (1 health) | $251K |
| 44 | 92881 | Corona | 73 | B | 3 | $724K |
| 45 | 92544 | Hemet | 72 | B | 8 (3 health) | $356K |
| 46 | 92883 | Corona | 72 | B | 7 | $672K |
| 47 | 92236 | Coachella | 70 | B | 10 (1 health) | $343K |
| 48 | 92220 | Banning | 67 | C | 18 (2 health) | $325K |
| 49 | 92223 | Beaumont | 65 | C | 20 (3 health) | $458K |
| 50 | 92503 | Riverside | 60 | C | 45 (1 health) | $556K |
| 51 | 92880 | Corona | 60 | C | 46 (1 health) | $724K |
| 52 | 92562 | Murrieta | 58 | C | 0 | $629K |
| 53 | 92563 | Murrieta | 58 | C | 0 | $616K |
| 54 | 92567 | Nuevo | 58 | C | 0 | $497K |
| 55 | 92582 | San Jacinto | 58 | C | 0 | $439K |
| 56 | 92590 | Temecula | 58 | C | 0 | $1201K |
| 57 | 92591 | Temecula | 58 | C | 0 | $650K |
| 58 | 92592 | Temecula | 58 | C | 0 | $664K |
| 59 | 92595 | Wildomar | 58 | C | 2 | $524K |
| 60 | 92507 | Riverside | 57 | C | 2 | $503K |
| 61 | 92320 | Calimesa | 49 | D | 19 (3 health) | $423K |
| 62 | 92860 | Norco | 44 | D | 45 (1 health) | $733K |
| 63 | 92202 | Indio | — | — | — | |
| 64 | 92226 | Blythe | — | — | — | |
| 65 | 92230 | Cabazon | — | — | 4 | $260K |
| 66 | 92235 | Cathedral City | — | — | — | |
| 67 | 92239 | Desert Center | — | — | $221K | |
| 68 | 92247 | La Quinta | — | — | — | |
| 69 | 92248 | La Quinta | — | — | — | |
| 70 | 92255 | Palm Desert | — | — | — | |
| 71 | 92261 | Palm Desert | — | — | — | |
| 72 | 92263 | Palm Springs | — | — | — | |
| 73 | 92282 | Whitewater | — | — | 4 | $273K |
| 74 | 92292 | Palm Springs | — | — | — | |
| 75 | 92502 | Riverside | — | — | — | |
| 76 | 92513 | Riverside | — | — | — | |
| 77 | 92514 | Riverside | — | — | — | |
| 78 | 92515 | Riverside | — | — | — | |
| 79 | 92516 | Riverside | — | — | — | |
| 80 | 92517 | Riverside | — | — | — | |
| 81 | 92519 | Riverside | — | — | — | |
| 82 | 92521 | Riverside | — | — | 0 | — |
| 83 | 92522 | Riverside | — | — | — | |
| 84 | 92531 | Lake Elsinore | — | — | — | |
| 85 | 92536 | Aguanga | — | — | 0 | $399K |
| 86 | 92539 | Anza | — | — | 9 (8 health) | $298K |
| 87 | 92546 | Hemet | — | — | — | |
| 88 | 92549 | Idyllwild | — | — | 8 (2 health) | $486K |
| 89 | 92552 | Moreno Valley | — | — | — | |
| 90 | 92554 | Moreno Valley | — | — | — | |
| 91 | 92556 | Moreno Valley | — | — | — | |
| 92 | 92561 | Mountain Center | — | — | 15 (10 health) | $560K |
| 93 | 92564 | Murrieta | — | — | — | |
| 94 | 92572 | Perris | — | — | — | |
| 95 | 92581 | San Jacinto | — | — | — | |
| 96 | 92589 | Temecula | — | — | — | |
| 97 | 92593 | Temecula | — | — | — | |
| 98 | 92599 | Perris | — | — | — | |
| 99 | 92877 | Corona | — | — | — | |
| 100 | 92878 | Corona | — | — | — |
Recommended Buyer Guides for Riverside County
Filtered against federal data, fitted to local risks.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Riverside County, California
Overview
Riverside County in California covers 100 tracked ZIP records with an average Home Safety Score of B (70/100) across 62 scored records.
36 of 69 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 16 health-based violations appear in the available health breakdown.
← Back to California 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.