Denver Metro Safety Rankings: Colorado's Safest ZIP Codes

The safest neighborhoods in the Denver metro area are not inside Denver's city limits — they're in the surrounding suburbs of Boulder, Arapahoe, and Douglas counties. According to FBI Uniform Crime Reporting data compiled through the FBI Crime Data Explorer, ZIP code 80027 in Louisville, Colorado carries the highest crime score of any ZIP in the metro, at 95 out of 100, while Denver County ZIP codes cluster far lower on the same scale. Buyers and renters comparing Denver-area safety should look at the ring of suburbs south and northwest of the city, not the urban core.

How NeighborScore Ranks Denver Metro Safety

NeighborScore's composite index combines two components into a single overall score: overall_score = crime_score × 0.53 + school_score × 0.47. Safety and school quality are the only two inputs. A third metric, the value score, measures affordability against the state median home price and appears on every ZIP profile, but it is not part of the overall score — it's shown as context for buyers weighing cost against safety, not as a quality grade.

Crime scores themselves come from a tiered methodology built on FBI Part I offense data. Where ZIP-level incident data exists, that's used directly against the county median. Where it doesn't, NeighborScore falls back to municipality-level FBI agency data, then county-level FBI data, joined to ZIP codes through Census geography. Every ZIP in this ranking is scored from FBI county- or municipality-level crime data reported to the FBI Crime Data Explorer, which aggregates agency-level Uniform Crime Reporting submissions nationwide.

The Safest ZIP Codes in the Denver Metro, Ranked

Five ZIP codes lead the Denver metro on NeighborScore's overall composite, and all five sit outside Denver's city limits. Ranked by overall score:

1. Louisville (80027) — scores 85/100 overall, with a crime score of 95 and a school score of 74. This is the highest overall score of any ZIP in the Denver metro.
2. Centennial (80122) — scores 84/100 overall, tying Louisville on a 95 crime score with a slightly lower school score of 71.
3. Centennial (80121) — scores 82/100 overall, also on a 95 crime score, with a school score of 68.
4. Centennial (80112) — scores 81/100 overall, with the same 95 crime score and a school score of 66.
5. Parker (80134) — scores 80/100 overall, again on a 95 crime score, with a school score of 63.

Parker's neighboring ZIP 80138 posts an identical 95 crime score and an overall score of 81, essentially tied with 80112 for fourth place. Boulder's 80305 trails the suburban leaders with a crime score of 65 and an overall score of 71 — still solidly above Denver's urban core, but well behind the Louisville-Centennial-Parker cluster that dominates this list.

Why Denver's Suburbs Outscore the Urban Core

Denver County ZIP codes score a flat crime score of 25 across the board in NeighborScore's data, a stark contrast to the 95 that Louisville, Centennial, and Parker post. That gap reflects FBI agency-level crime data reported for the City and County of Denver versus the smaller municipal and county jurisdictions that cover the southern and northwestern suburbs. Population density, jurisdiction size, and reporting patterns all factor into how FBI Part I offense rates translate into a 0–100 band, and Denver's dense urban core simply reports a higher offense rate per resident than its lower-density suburbs.

Affordability tells a different story than safety. Louisville's 80027 carries the highest crime score in this ranking but also the lowest value score of the group at 34, meaning it's less affordable relative to the Colorado state median home price than the other four ZIPs. Centennial's 80122 and 80112 both post value scores of 42, the most affordable of the group by that measure, while still matching Louisville's 95 crime score. None of these value scores factor into the overall score above — they're affordability context only, useful for a buyer weighing safety against budget, not a mark against a ZIP's safety standing.

Population size also matters when reading these numbers. Parker's 80134 is the largest ZIP in the group by population, according to US Census Bureau data, yet it still posts a 95 crime score — evidence that the suburban safety advantage in this metro isn't just a function of small, low-population ZIPs skewing the average. Larger and smaller suburban ZIPs alike outscore Denver's urban core by a wide margin.

For a broader look at how Denver stacks up against other fast-growing metros on the same composite index, see NeighborScore's guides and data breakdowns on the blog.

Bottom Line

The safest ZIP codes in the Denver metro are concentrated in Louisville, Centennial, and Parker, not in Denver proper. Louisville's 80027 leads the metro at 85/100 overall, followed closely by three Centennial ZIP codes and Parker's 80134, all built on a 95 crime score against Denver County's flat 25. Buyers prioritizing safety alongside school quality should focus their search on this southern and northwestern suburban ring, and weigh each ZIP's value score separately as an affordability check, not a safety signal.