Boulder County, Colorado: roof stress score 44.8 of 100
Boulder County ranks #649 of 1,113 scored counties (moderate stress) and #17 of 26 in Colorado. Boulder County homes: 74.9% predate 2000, median year 1986. Hail in Boulder County (1 inch or more): 2.5 days a year. Permits in Boulder County ran 54.1 per 1,000 homes, 2014 to 2025.
- 44.8score
- #649nationally
- #17in Colorado
- 1986median home year
Inputs behind the 44.8
| Input | Boulder County | Median | Stress percentile | In CO |
|---|---|---|---|---|
| Homes built before 2000 | 74.9% | 80.4% | 31 | 33 |
| Severe hail days per year | 2.5 | 2.0 | 68 | 19 |
| New-home permits per 1,000 homes (inverted) | 54.1 | 35.5 | 35 | 48 |
Average of 31, 68 and 35: 44.8
Boulder County on age: 25.1% of homes date from 2000 or later. Boulder County on hail: 30 severe days over 12 full years, 7 of them in 2018. Boulder County on building: 54.1 permits per 1,000 homes; median 35.5.
Boulder County: is your roof past its time?
Boulder County hail days: NOAA 1 inch+ reports
Boulder County homes by decade built
| pre-1940 | 6.2% |
|---|---|
| 1940s | 1.4% |
| 1950s | 5.0% |
| 1960s | 9.9% |
| 1970s | 19.1% |
| 1980s | 14.7% |
| 1990s | 18.7% |
| 2000s | 12.5% |
| 2010s | 11.2% |
| 2020+ | 1.5% |
142,809 housing units. Biggest slice: 1970s, 19.1%. Before 1980: 41.5%. Since 2010: 12.6%.
New-home permits in Boulder County
| 14 | 560 |
|---|---|
| 15 | 768 |
| 16 | 716 |
| 17 | 808 |
| 18 | 899 |
| 19 | 742 |
| 20 | 573 |
| 21 | 343 |
| 22 | 661 |
| 23 | 791 |
| 24 | 441 |
| 25 | 428 |
Boulder County issued 7,730 single-family permits, equal to 5.4% of its 142,809 housing units. Pace: about 553 a year lately, down from 681 a year at the start. Peak: 899 permits in 2018.
Severe hail days in Boulder County, by year
| 14 | 2 |
|---|---|
| 15 | 3 |
| 16 | 1 |
| 17 | 0 |
| 18 | 7 |
| 19 | 4 |
| 20 | 1 |
| 21 | 1 |
| 22 | 2 |
| 23 | 4 |
| 24 | 1 |
| 25 | 4 |
* partial year. Boulder County: severe days in 11 of 12 full years (worst: 2018, 7 days). Ten biggest storms: Boulder County hail history.
Map of 110 hail reports in Boulder County
Dots mark reports, not storm paths.
Boulder County among Colorado counties
| County | Score | Pre-2000 | Hail days | Permits | Gap |
|---|---|---|---|---|---|
| Jefferson County | 59.5 | 81.1% | 3.5 | 50.8 | +14.7 |
| Pueblo County | 56.0 | 78.6% | 4.6 | 62.3 | +11.2 |
| Boulder County | 44.8 | 74.9% | 2.5 | 54.1 | +0.0 |
| El Paso County | 41.2 | 67.3% | 12.5 | 142.1 | -3.6 |
| Denver County | 41.1 | 71.3% | 2.5 | 55.6 | -3.7 |
| Larimer County | 38.6 | 62.5% | 4.3 | 121.2 | -6.2 |
6 published. Boulder County on the Colorado map
Counties scoring near 44.8
| County | Rank | Score | Gap |
|---|---|---|---|
| Genesee County, MI | #633 | 45.6 | +0.8 |
| Santa Fe County, NM | #645 | 45.1 | +0.3 |
| Madison County, IN | #646 | 45.1 | +0.3 |
| Lancaster County, NE | #650 | 44.7 | -0.1 |
| Rapides Parish, LA | #655 | 44.6 | -0.2 |
| Cleveland County, OK | #677 | 43.8 | -1.0 |
Why Boulder County lands at 44.8
Boulder County: hail pulls hardest, at the 68th percentile. Age stands at 31, hail at 68, renewal at 35. Your house may differ: the score of Boulder County is not a verdict on one roof.
Boulder County next steps
- Check an address in Boulder County: hail check.
- Compare Boulder County with roof age by city.
- Claim clock after a Boulder County storm: deadlines and date calculator.
- Boulder County roofers we list: Boulder, Longmont.
Boulder County data: NOAA (30 severe days), Census ACS (142,809 homes), Census BPS (7,730 permits). Method, limits and common questions