The Average U.S. Home Safety Score
Data current as of June 2026 — recomputed by ZipCheckup from federal data each build.
The average U.S. ZIP code scores 67/100 (grade C) on ZipCheckup's Home Safety composite, spanning 41,344 ZIP codes as of June 2026.
The average U.S. ZIP code scores 67 out of 100 — a C grade — on ZipCheckup’s Home Safety composite, across 41,344 ZIP codes as of June 2026.
By state
We report two independent facts side by side and do not rank states. A larger count reflects the size of a state's inventory and its reporting activity, not a judgment about water safety.
| state | avg score | grade | zips | pct a or b |
|---|---|---|---|---|
| AK | 75 | B | 274 | 64% |
| AL | 73 | B | 819 | 62% |
| AR | 76 | B | 706 | 66% |
| AZ | 64 | C | 553 | 40% |
| CA | 73 | B | 2,630 | 63% |
| CO | 60 | C | 658 | 9% |
| CT | 65 | C | 433 | 30% |
| DC | 68 | C | 286 | 6% |
| DE | 81 | B | 97 | 89% |
| FL | 73 | B | 1,484 | 60% |
| GA | 75 | B | 964 | 62% |
| HI | 79 | B | 137 | 77% |
| IA | 59 | C | 1,058 | 12% |
| ID | 66 | C | 324 | 44% |
| IL | 61 | C | 1,583 | 28% |
| IN | 60 | C | 980 | 22% |
| KS | 64 | C | 749 | 33% |
| KY | 61 | C | 947 | 19% |
| LA | 71 | B | 723 | 57% |
| MA | 66 | C | 695 | 40% |
| MD | 61 | C | 615 | 21% |
| ME | 57 | C | 485 | 13% |
| MI | 74 | B | 1,167 | 64% |
| MN | 62 | C | 1,009 | 22% |
| MO | 69 | C | 1,161 | 50% |
| MS | 81 | B | 532 | 80% |
| MT | 55 | C | 405 | 12% |
| NC | 73 | B | 1,085 | 61% |
| ND | 56 | C | 407 | 12% |
| NE | 65 | C | 621 | 32% |
| NH | 64 | C | 282 | 47% |
| NJ | 58 | C | 726 | 20% |
| NM | 62 | C | 428 | 35% |
| NV | 81 | B | 254 | 77% |
| NY | 61 | C | 2,186 | 30% |
| OH | 60 | C | 1,435 | 22% |
| OK | 79 | B | 771 | 67% |
| OR | 78 | B | 482 | 78% |
| PA | 55 | C | 2,184 | 11% |
| RI | 61 | C | 90 | 24% |
| SC | 78 | B | 534 | 69% |
| SD | 60 | C | 392 | 21% |
| TN | 69 | C | 787 | 38% |
| TX | 82 | B | 2,649 | 81% |
| UT | 72 | B | 347 | 67% |
| VA | 66 | C | 1,228 | 37% |
| VT | 71 | B | 308 | 55% |
| WA | 78 | B | 726 | 69% |
| WI | 66 | C | 898 | 40% |
| WV | 64 | C | 855 | 31% |
| WY | 55 | C | 195 | 8% |
Open data, licensed CC BY 4.0 · DOI: 10.5281/zenodo.19427201
How we compute this
We aggregate ZipCheckup's per-ZIP Home Safety score — a composite of EPA drinking-water compliance, lead and copper readings, EPA radon zones, and FEMA flood exposure — into a national average and a per-state distribution. The figure recomputes each build from the latest federal extracts.
The score is a relative composite, not a regulatory determination. A state's average reflects the mix of ZIP scores within it; we publish the distribution side by side and draw no causal conclusion about why one state's mix differs from another's.
States are listed alphabetically, not ranked. A higher average does not certify safety, and a lower one does not certify harm — each ZIP carries its own underlying federal data, which the per-ZIP report shows in full.
Frequently asked questions
What is the average U.S. Home Safety score?
The average U.S. ZIP code scores 67 out of 100 — a grade C — on ZipCheckup's Home Safety composite, across 41,344 ZIP codes as of June 2026. The composite blends federal water, lead, radon, and flood signals. according to ZipCheckup's reading of federal data as of June 2026.
How is the Home Safety score distributed across states?
ZipCheckup computes a Home Safety average for each of 51 states and the District of Columbia, covering 41,344 ZIP codes as of June 2026. The per-state table lists them alphabetically with each state's average and grade, framed as a distribution rather than a ranking.