Cities within 100 miles of Niwot, Colorado
Origin: Niwot, CO — 40.1011, -105.17
Generated: 2026-05-07 · Total cities: 41
Tier A = within 25mi straight-line (highest local SEO priority). Tier B = 25–50mi (service-area enumeration). Tier C = 50–100mi (drive-able outliers).
Driving distance + drive time are estimates from typical mid-day Front Range routing. Mountain routes are inflated to reflect switchbacks vs. crow-fly distance.
Tier A — Within 25 miles (priority local SEO)
| City | Region | Pop. | Crow mi | Drive mi | Drive min | County | Identity |
|---|---|---|---|---|---|---|---|
| Niwot | Boulder Metro | 4,306 | 0.8 | 0.0 | 1 | Boulder | Unincorporated CDP — origin point |
| Longmont | Boulder Metro | 98,885 | 5.8 | 7 | 13 | Boulder/Weld | First planned community in Boulder County |
| Hygiene | Boulder Metro | 400 | 6.1 | 7 | 14 | Boulder | Unincorporated community, historic Church of the Brethren |
| Erie | Boulder Metro | 30,038 | 7.2 | 10 | 18 | Weld/Boulder | Fast-growing Boulder/Weld border town |
| Lafayette | Boulder Metro | 30,411 | 7.5 | 8 | 15 | Boulder | Former coal-mining town, now residential |
| Boulder | Boulder Metro | 108,250 | 8.0 | 9 | 18 | Boulder | University town, Flatirons, CU campus |
| Lyons | Foothills | 2,209 | 9.2 | 15 | 25 | Boulder | Double Gateway to the Rockies, red sandstone |
| Louisville | Boulder Metro | 21,226 | 9.3 | 11 | 18 | Boulder | Coal-mining town turned suburban hub |
| Superior | Boulder Metro | 13,361 | 11.6 | 14 | 22 | Boulder/Jefferson | Coal-era community, Marshall Fire rebuild |
| Dacono | North Front Range | 6,297 | 12.2 | 13 | 21 | Weld | Carbon Valley town in Weld County |
| Frederick | North Front Range | 14,513 | 12.3 | 12 | 20 | Weld | Carbon Valley town with mining history |
| Firestone | North Front Range | 16,381 | 12.4 | 12 | 20 | Weld | Carbon Valley municipality |
| Mead | North Front Range | 4,781 | 12.8 | 13 | 22 | Weld | Small Weld town between Longmont and I-25 |
| Eldorado Springs | Foothills | 559 | 12.9 | 18 | 30 | Boulder | Census-designated place, spring-water bottling |
| Broomfield | Denver Metro | 74,112 | 13.2 | 14 | 22 | Broomfield | Independent city/county, US-36 corridor |
| Berthoud | North Front Range | 10,332 | 15.1 | 18 | 28 | Larimer/Weld | 'Garden Spot of Colorado' |
| Northglenn | Denver Metro | 38,131 | 17.2 | 20 | 30 | Adams/Weld | Master-planned community, RTD light rail |
| Thornton | Denver Metro | 141,867 | 19.2 | 22 | 32 | Adams/Weld | Sixth-most-populous Colorado city north of Denver |
| Westminster | Denver Metro | 116,317 | 19.6 | 22 | 30 | Adams/Jefferson | Home-rule city in Denver metro |
| Allenspark | Mountain | 568 | 19.9 | 32 | 60 | Boulder | High meadow in Roosevelt National Forest |
| Nederland | Mountain | 1,471 | 20.0 | 28 | 55 | Boulder | Mountain town, gateway to Indian Peaks Wilderness |
| Brighton | Denver Metro | 40,083 | 20.1 | 21 | 32 | Adams/Weld | Adams County seat, agricultural roots |
| Arvada | Denver Metro | 124,402 | 21.1 | 25 | 35 | Jefferson/Adams | Olde Town historic district, Denver suburb |
| Johnstown | North Front Range | 17,303 | 21.2 | 22 | 30 | Weld/Larimer | Home-rule town with expanding economy |
| Loveland | North Front Range | 76,378 | 21.4 | 25 | 33 | Larimer | 'Sweetheart City', Valentine re-mailing |
| Milliken | North Front Range | 8,386 | 22.8 | 25 | 33 | Weld | Statutory town in Weld County |
| Wheat Ridge | Denver Metro | 32,398 | 23.7 | 28 | 38 | Jefferson | Former agricultural hub near Denver |
| Golden | Foothills | 20,399 | 24.0 | 32 | 45 | Jefferson | Coors brewery, Colorado School of Mines |
Tier B — 25 to 50 miles (service-area enumeration)
| City | Region | Pop. | Crow mi | Drive mi | Drive min | County | Identity |
|---|---|---|---|---|---|---|---|
| Estes Park | Mountain | 5,904 | 26.6 | 40 | 75 | Larimer | Gateway to Rocky Mountain National Park |
| Denver | Denver Metro | 715,522 | 26.9 | 32 | 42 | Denver | State capital, Mile High City |
| Lakewood | Denver Metro | 155,984 | 27.8 | 33 | 42 | Jefferson | Fifth-most-populous Colorado city |
| Windsor | North Front Range | 32,716 | 29.3 | 32 | 42 | Larimer/Weld | Home-rule municipality, rapid growth |
| Aurora | Denver Metro | 386,261 | 31.3 | 40 | 55 | Arapahoe/Adams/Douglas | Third-largest Colorado city |
| Evans | North Front Range | 22,165 | 31.6 | 38 | 52 | Weld | Greeley-adjacent, agricultural roots |
| Timnath | North Front Range | 10,848 | 31.8 | 36 | 46 | Larimer | Small agricultural community SE of Fort Collins |
| Englewood | Denver Metro | 33,659 | 32.8 | 38 | 52 | Arapahoe | Denver suburb south of downtown |
| Greeley | North Front Range | 108,795 | 33.0 | 38 | 50 | Weld | Weld County seat, UNC campus |
| Severance | North Front Range | 7,683 | 33.7 | 42 | 55 | Weld | 'Where the geese fly and the bulls cry' |
| Fort Collins | North Front Range | 169,810 | 33.8 | 38 | 48 | Larimer | CSU campus, Old Town district |
| Centennial | Denver Metro | 108,418 | 39.3 | 45 | 60 | Arapahoe | South-metro home-rule city |
| Wellington | North Front Range | 11,047 | 42.5 | 50 | 60 | Larimer | Colorado's Northern Gateway, north of FoCo |
Tier C — 50 to 100 miles (drive-able outliers)
No cities in this tier.
Methodology
- Lat/lng + population verified individually via Wikipedia city pages (2026-05-07).
- Straight-line miles computed via the Haversine formula from Niwot's reference coordinates.
- Driving distance + drive time are author estimates; for production schema-markup or paid-ads geo-targeting, recompute via the Google Maps Distance Matrix API.
- Mountain routes (Estes Park, Allenspark, Nederland) have driving distances notably greater than straight-line because of canyon switchbacks.
- Hygiene's population (~400) is approximate — Wikipedia entry for the unincorporated CDP does not publish a current census figure.