Wildfire Risk: Very Low


Tornado Risk: Very Low


Hurricane Risk: Very Low


Hail Risk: Very Low


Flood Risk: Moderate


Tsunami Risk: Very Low


Earthquake Risk: Very Low


Wind Risk: Low

HAZARDS

9

Power Transmission Lines

0

Coastlines

66

Water Bodies

0

Fault Lines

EMERGENCY SERVICES

4

Hazard Shelters

5

Fire Stations

1

Hospitals

1

Police Stations

COMMUNITY PROFILE

Jefferson County, located in Iowa, has a population of 17,585 with a population density of 40.3 people per square mile. The population in 2010 was 16,843 with a population density of 38.6 people per square mile. The demographic breakdown shows that the majority of the population is White (83.9%), followed by Asians (8.1%), Hispanics (2.3%), Blacks (1.2%), and other races (4.2%). The gender distribution in the county is relatively balanced with 51.1% males and 48.9% females. The median age in Jefferson County is 43.6 years, with a median age of 38.9 for males and 47.5 for females. The average household size is 2.21, with 47.5% of households being married with children, and 31.4% being married without children.

Compared to other counties in Iowa, Jefferson County has a higher population density and a larger percentage of Asians in its population. It also has a lower percentage of Black and Hispanic residents compared to the state average. The county has a slightly older population with a median age of 43.6, which is higher than the state average. Jefferson County also has a lower average household size of 2.21 compared to the state average of 2.44. In terms of agriculture, the county has 636 farms in 2017, with an average farm size of 324 acres and a total crop acreage of 170,391 acres, with an average sales value of $170,704 per farm, which is higher than the state average.


Regions

CLIMATE OVERVIEW

Average Temperature
11 °F Cold

Average Precipitation
928 mm Moderate

Average Humidity
84% Moderately High

Plant Hardiness
5/10 Moderate

NATURAL CATASTROPHE TIMELINE

Hailstorm

2020-04-08

Flooding

Heavy Rain

2019-04-30

Flooding

Snowmelt, Heavy Rain, Ice Jams

2019-03-13

Tornado

2017-05-17

Hailstorm

2017-05-17

Hailstorm

2015-09-17

Hailstorm

2014-09-15

Hailstorm

2014-06-16

Flooding

Heavy Rain

2014-06-10

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-05-11

Hailstorm

2014-04-27

Hailstorm

2013-08-06

Hailstorm

2013-05-28

Hailstorm

2013-05-28

Flooding

Heavy Rain

2013-05-25

Hailstorm

2013-05-19

Hailstorm

2013-05-19

Flooding

Heavy Rain

2013-04-22

Hailstorm

2013-04-17

Hailstorm

2013-04-17

Hailstorm

2013-04-17

Hailstorm

2011-09-03

Hailstorm

2011-09-03

Hailstorm

2011-09-03

Hailstorm

2011-09-03

Hailstorm

2011-09-03

Hailstorm

2011-09-01

Hailstorm

2011-04-19

Hailstorm

2011-04-19

Hailstorm

2011-04-19

Hailstorm

2011-04-19

Hailstorm

2011-04-03

Hailstorm

2011-04-03

Flooding

Heavy Rain And Snow

2011-03-07

Flooding

Dam Failure, Heavy Rain

2010-07-25

Hailstorm

2010-06-20

Hailstorm

2010-06-18

Flooding

Heavy Rain Snowmelt Dam B

2010-03-10

Hailstorm

2009-03-07

Flooding

Heavy Rain

2009-02-28

Flooding

Heavy Rain

2008-12-10

Hailstorm

2008-07-21

Flooding

Heavy Rain

2008-06-05

Flooding

Rain And Snowmelt

2008-03-17

Hailstorm

2007-08-23

Flooding

Heavy Rain

2007-08-16

Hailstorm

2007-07-16

Flooding

Heavy Rain

2007-05-06

Hailstorm

2006-07-17

Hailstorm

2006-07-17

Hailstorm

2006-06-27

Hailstorm

2006-06-06

Hailstorm

2006-06-06

Hailstorm

2006-06-06

Tornado

2006-04-02

Hailstorm

2006-04-02

Hailstorm

2006-03-12

Hailstorm

2006-03-12

Hailstorm

2006-03-12

Hailstorm

2006-03-08

Hailstorm

2006-03-08

Hailstorm

2005-09-18

Hailstorm

2005-09-08

Hailstorm

2005-09-08

Hailstorm

2005-06-04

Hailstorm

2005-06-04

Hailstorm

2004-06-14

Flooding

Heavy Rain

2004-05-22

Tornado

2003-05-10

Hailstorm

2003-05-10

Hailstorm

2003-04-30

Hailstorm

2003-04-30

Hailstorm

2003-04-30

Hailstorm

2003-04-30

Hailstorm

2003-04-30

Hailstorm

2003-04-30

Hailstorm

2002-08-12

Hailstorm

2002-06-01

Hailstorm

2002-06-01

Hailstorm

2001-04-05

Hailstorm

2000-10-03

Hailstorm

2000-05-18

Hailstorm

1999-06-08

Tornado

1999-04-08

Hailstorm

1998-05-20

Hailstorm

1996-04-18

Hailstorm

1996-04-18

Hailstorm

1993-06-07

Tornado

1992-04-20

Flooding

Heavy Rain

1990-08-18

Tornado

1990-06-16

Hailstorm

1989-04-26

Tornado

1986-08-05

Hailstorm

1985-10-23

Hailstorm

1984-09-24

Hailstorm

1976-06-28

Hailstorm

1976-05-15

Tornado

1967-04-21

Tornado

1965-05-07

Hailstorm

1965-04-23

Hailstorm

1964-06-19

Hailstorm

1960-07-29