Four Square Mile, CO
Full City Profile · Colorado · Denver County County
3.9
/5.0
B+
Good
21,788
Population
8,070/sq mi density
$73,318
Median Income
$42,450 per capita
$448,200
Home Value
$328,805 Zillow
$1,796
Median Rent
30.6% income on rent
51°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$73,318 median income, 3.3% unemployment
B
Affordability
3.2 / 5.0
$448,200 home value, $1,796/mo rent
A+
Education
4.6 / 5.0
45.2% bachelor's degree or higher
Four Square Mile experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 32°F in January while summers reach 75°F in July. Annual precipitation totals 15.4 inches. The area receives 49.0 inches of snow annually. Air quality is rated Moderate with a median AQI of 55.
Temperature
32°F Jan (0°C)
75°F Jul (24°C)
| Annual Average | 51.4°F |
| 5% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 5,440 ft (1,658 m) |
| Area | 2.7 sq mi (7.0 km²) |
| Population Density | 8,070/sq mi |
| Coordinates | 39.6807°N, 104.8879°W |
| Timezone | America/Denver |
| County | Denver County County |
| Nearest Airport | Denver International (DEN) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 55.0 |
| Rating | Moderate |
| Good Days % | 35.2% |
| Unhealthy Days | 29 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0480 ppm |
| NO₂ (Nitrogen Dioxide) | 26.5 ppb |
| SO₂ (Sulfur Dioxide) | 0.77 ppb |
| CO (Carbon Monoxide) | 0.36 ppm |
| PM2.5 (Fine Particles) | 6.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.2 / 100 |
| Social Vulnerability | 17.8 / 100 |
| Community Resilience | 68.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Very High |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 0.5 in | Driest |
| February | 33°F (1°C) | 0.5 in | |
| March | 42°F (5°C) | 1.1 in | |
| April | 48°F (9°C) | 1.7 in | |
| May | 58°F (14°C) | 2.3 in | Wettest |
| June | 69°F (20°C) | 1.7 in | |
| July | 75°F (24°C) | 2.1 in | Warmest |
| August | 73°F (23°C) | 1.8 in | |
| September | 64°F (18°C) | 1.5 in | |
| October | 51°F (11°C) | 1.0 in | |
| November | 40°F (5°C) | 0.7 in | |
| December | 32°F (-0°C) | 0.5 in | Coldest |
Four Square Mile has a seasonal temperature swing of 43°F / from 32°F in December to 75°F in July. Total annual precipitation is 15.4 inches, with May being the wettest month (2.3") and January the driest (0.5").