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Tripoli, IA

Full City Profile · Iowa · Bremer County County

3.3 /5.0
B Good
1,256 Population 904/sq mi density
$75,988 Median Income $35,257 per capita
$116,200 Home Value $168,049 Zillow
$888 Median Rent 18.1% income on rent
46°F Avg Temperature 260 sunny days/yr
544 Violent Crime/100K 1,492 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$75,988 median income, 1.7% unemployment
A+
Affordability
5.0 / 5.0
$116,200 home value, $888/mo rent
F
Safety
1.0 / 5.0
544 violent crimes/100K (43% above avg)
C+
Education
2.8 / 5.0
22.7% bachelor's degree or higher
Tripoli experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 16°F in January while summers reach 72°F in July. The area gets 260 sunny days per year. Annual precipitation totals 38.6 inches. Air quality is rated Good with a median AQI of 43.

Temperature

16°F Jan (-9°C) 72°F Jul (22°C)
Annual Average46.4°F
14% below US avg
January Average16°F (-9°C)
July Average72°F (22°C)
Sunny Days260 days/yr

Geography

Elevation1,024 ft (312 m)
Area1.4 sq mi (3.7 km²)
Population Density904/sq mi
Coordinates42.8084°N, 92.2578°W
TimezoneAmerica/Chicago
CountyBremer County County
Nearest AirportWaterloo Regional (ALO)
19 miles away

Precipitation & Snow

Annual Rainfall 38.6"
2% above US avg
Wettest Month (Jul) 4.65"
Driest Month (Jan) 0.94"

Air Quality

AQI Median43.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0471 ppm

Natural Hazard Risk

Overall RiskVery Low
Risk Score24.6 / 100
Social Vulnerability10.6 / 100
Community Resilience98.0 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Very Low
Earthquake Very Low
Wildfire Very Low
Flood Very Low
Hail Relatively Low
Strong Wind Relatively Low
Heat Wave Very Low
Winter Weather Relatively Low
Lightning Very Low
Ice Storm Very Low
Drought Relatively Moderate
Cold Wave Relatively Low
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Tornado History

578 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 35 fatalities, 936 injuries.

Date Rating Distance Fatalities
May 25, 2008 EF5 58 km 9
May 15, 1968 EF5 31 km 5
May 15, 1968 EF5 71 km 13
Mar 13, 1990 EF4 94 km 0
May 30, 1989 EF4 95 km 0
Aug 12, 1974 EF4 82 km 0
Jul 12, 1971 EF4 49 km 0
Apr 30, 1967 EF4 92 km 0
Aug 26, 1965 EF4 57 km 1
May 5, 1965 EF4 70 km 0
Sep 1, 1961 EF4 61 km 0
Apr 30, 1954 EF4 89 km 0
May 10, 1953 EF4 72 km 2
May 25, 2008 EF3 30 km 0
Jun 11, 2004 EF3 70 km 0
May 21, 2004 EF3 92 km 0
May 11, 2000 EF3 36 km 1
Jul 27, 1995 EF3 53 km 0
Jul 19, 1994 EF3 55 km 0
Jun 19, 1993 EF3 74 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 16°F (-9°C) 0.9 in Coldest, Driest
February 22°F (-6°C) 1.1 in
March 34°F (1°C) 2.3 in
April 47°F (9°C) 3.5 in
May 60°F (15°C) 4.3 in
June 69°F (21°C) 4.5 in
July 72°F (22°C) 4.7 in Warmest, Wettest
August 70°F (21°C) 4.5 in
September 62°F (17°C) 3.6 in
October 50°F (10°C) 2.6 in
November 34°F (1°C) 2.0 in
December 21°F (-6°C) 1.3 in

Tripoli has a seasonal temperature swing of 56°F / from 16°F in January to 72°F in July. Total annual precipitation is 35.2 inches, with July being the wettest month (4.7") and January the driest (0.9").

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