Jefferson County, Iowa

Jefferson County is a located in the  of. As of, the population is 16,181. Its is.

Law and government
Jefferson County's executive branch is a three-member board of supervisors. Supervisors are elected to four-year terms. The current board members, their party affiliations and the years in which they were last elected are: Steve Burgmeier (Republican, 2004), Mike Pech (Republican, 2004), and Dick Reed (Republican, 2002). Other elected officials are Scott Reneker, county auditor; Jerry Droz, county sheriff; Connie Hedger, county treasurer; and Charlotte Fleig, county recorder.

Geography
According to the, the county has a total area of 1,131 (437 ). 1,128 km² (435 sq mi) of it is land and 4 km² (1 sq mi) of it (0.32%) is water.

Major Highways

 * [[Image:US 34.svg|20px]]
 * [[Image:Iowa 1.svg|20px]]
 * [[Image:Iowa 78.svg|20px]]

Adjacent counties

 * (northwest)
 * (northeast)
 * (east)
 * (south)
 * (west)

Demographics
As of the of 2000, there were 16,181 people, 6,649 households, and 4,281 families residing in the county. The was 14/km² (37/sq mi). There were 7,241 housing units at an average density of 6/km² (17/sq mi). The racial makeup of the county was 96.02%, 0.64% or , 0.17% , 1.70% , 0.04% , 0.53% from , and 0.91% from two or more races. 1.84% of the population were or  of any race.

There were 6,649 households out of which 31.10% had children under the age of 18 living with them, 53.10% were living together, 8.00% had a female householder with no husband present, and 35.60% were non-families. 30.40% of all households were made up of individuals and 10.70% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.93.

In the county the population was spread out with 24.40% under the age of 18, 7.60% from 18 to 24, 24.40% from 25 to 44, 29.80% from 45 to 64, and 13.80% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 95.90 males. For every 100 females age 18 and over, there were 93.60 males.

The median income for a household in the county was $33,851, and the median income for a family was $43,819. Males had a median income of $32,066 versus $22,479 for females. The for the county was $19,579. About 7.40% of families and 10.90% of the population were below the, including 12.40% of those under age 18 and 9.00% of those age 65 or over.

Cities and towns