In 2025, Longmont police reported 350 violent crimes (350 per 100,000 residents), including 1 murders, 28 robberies and 218 aggravated assaults, plus 2,412 property crimes, according to FBI data.
Population covered: 99,973. Violent-crime rate rank: 8 of 13 large Colorado cities on this site (1 = highest rate). Source: FBI Crime Data Explorer, agency CO0070400, January–December 2025.
| City | Violent / 100k | Violent | Murders | Property / 100k | Map |
|---|---|---|---|---|---|
| Pueblo | 1,177 | 1,306 | 11 | 4,296 | Totals |
| Denver | 881 | 6,463 | 44 | 4,119 | Totals |
| Aurora | 763 | 3,108 | 36 | 2,462 | Totals |
| Colorado Springs | 690 | 3,428 | 25 | 3,002 | Live |
| Lakewood | 675 | 1,060 | 8 | 4,494 | Totals |
| Greeley | 630 | 729 | 10 | 2,887 | Totals |
| Boulder | 354 | 377 | 3 | 2,411 | Live |
| Longmont | 350 | 350 | 1 | 2,413 | Totals |
| Arvada | 307 | 372 | 7 | 2,289 | Totals |
| Fort Collins | 289 | 494 | 4 | 1,751 | Totals |
| Westminster | 288 | 331 | 5 | 2,905 | Totals |
| Thornton | 251 | 371 | 2 | 2,266 | Totals |
| Centennial | 192 | 209 | 1 | 1,410 | Totals |
Source: FBI Crime Data Explorer agency counts for 2025 (all 12 months reported unless noted), retrieved October 7, 2026. Rates use the population the FBI lists for each police agency.
Longmont's violent-crime rate of 350 per 100,000 people in 2025 was 19% lower than the Colorado rate (434) and 9% higher than the U.S. rate (320). That works out to one reported violent crime for every 286 residents, or about 6.7 a week.
Among the 362 cities with full-year FBI numbers on CityCrimeMap, Longmont ranks 208th for violent crime, in the lower half, and 296th for murder (1 murder, 1 per 100,000).
Aggravated assaults made up 62% of Longmont's violent crimes and robberies 8%, a smaller robbery share than the national 15%.
Property crime ran 2,413 per 100,000, 10% higher than Colorado overall. Longmont police logged 236 vehicle thefts (236 per 100,000, 170th of 351; Colorado: 312) and 269 burglaries (269 per 100,000, 6% lower than the state).
The closest city we cover is Boulder, 13 miles southwest; its violent-crime rate (354) is about even with Longmont's.
Out-of-state cities near Longmont's size (99,973 residents): Edmond, OK at 139 violent crimes per 100,000 and San Angelo, TX at 286.
By the FBI's 2025 numbers, Longmont had 350 violent crimes per 100,000 residents, 19% lower than the statewide 434. It is 8th highest of the 13 Colorado cities on this site; Pueblo is highest at 1,177. A city-wide rate does not tell you about a single block.
Longmont police reported 1 murder for 2025, a rate of 1 per 100,000 residents. The Colorado rate was 3.9 and the national rate 4.1.
236 vehicles were reported stolen in Longmont in 2025, 236 per 100,000 residents. That is 21% higher than the national rate of 195 and ranks 170th of 351 cities on this site.