Delaware County, Iowa

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Delaware County, Iowa
Delaware County Courthouse.jpg
Map of Iowa highlighting Delaware County
Location in the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location in the U.S.
Founded 1837
Named for State of Delaware
Seat Manchester
Largest city Manchester
Area
 • Total 579 sq mi (1,500 km2)
 • Land 578 sq mi (1,497 km2)
 • Water 1.2 sq mi (3 km2), 0.2%
Population
 • (2010) 17,764
 • Density 31/sq mi (12/km2)
Congressional district 1st
Time zone Central: UTC−6/−5
Website www.co.delaware.ia.us

Delaware County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 17,764.[1] The county seat is Manchester.[2] The county was named in honor of Delaware.

Geography[edit]

A farm near Hopkinton

According to the U.S. Census Bureau, the county has a total area of 579 square miles (1,500 km2), of which 578 square miles (1,500 km2) is land and 1.2 square miles (3.1 km2) (0.2%) is water.[3] It has a rough hilly surface.[4]

Major highways[edit]

Adjacent counties[edit]

Demographics[edit]

Historical population
Census Pop.
18501,759
186011,024526.7%
187017,43258.1%
188017,9503.0%
189017,349−3.3%
190019,18510.6%
191017,888−6.8%
192018,1831.6%
193018,122−0.3%
194018,4872.0%
195017,734−4.1%
196018,4834.2%
197018,7701.6%
198018,9330.9%
199018,035−4.7%
200018,4042.0%
201017,764−3.5%
Est. 201617,327[5]−2.5%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2013[1]

2010 census[edit]

The 2010 census recorded a population of 17,764 in the county, with a population density of 30.7415/sq mi (11.8694/km2). There were 8,028 housing units, of which 7,062 were occupied.[10]

2000 census[edit]

2000 Census Age Pyramid for Delaware County

As of the census[11] of 2000, there were 18,404 people, 6,834 households, and 5,029 families residing in the county. The population density was 32 people per square mile (12/km²). There were 7,682 housing units at an average density of 13 per square mile (5/km²). The racial makeup of the county was 99.28% White, 0.07% Black or African American, 0.10% Native American, 0.14% Asian, 0.01% Pacific Islander, 0.10% from other races, and 0.30% from two or more races. 0.66% of the population were Hispanic or Latino of any race.

There were 6,834 households out of which 36.70% had children under the age of 18 living with them, 64.10% were married couples living together, 6.20% had a female householder with no husband present, and 26.40% were non-families. 23.00% of all households were made up of individuals and 11.20% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.15.

In the county, the population was spread out with 29.00% under the age of 18, 7.00% from 18 to 24, 27.60% from 25 to 44, 21.50% from 45 to 64, and 15.00% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 98.40 males. For every 100 females age 18 and over, there were 96.60 males.

The median income for a household in the county was $37,168, and the median income for a family was $43,607. Males had a median income of $30,712 versus $19,685 for females. The per capita income for the county was $17,327. About 6.30% of families and 7.90% of the population were below the poverty line, including 8.50% of those under age 18 and 9.80% of those age 65 or over.

Communities[edit]

Cities[edit]

Townships[edit]

Delaware County is divided into these townships:

Unincorporated Communities[edit]

Population ranking[edit]

The population ranking of the following table is based on the 2010 census of Delaware County.[12]

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)

1 Manchester City 5,179
2 Dyersville (mostly in Dubuque County) City 4,058
3 Edgewood (partially in Clayton County) City 864
4 Earlville City 812
5 Hopkinton City 628
6 Delhi City 460
7 Colesburg City 404
8 Ryan City 361
9 Greeley City 256
10 Dundee City 174
11 Delaware City 159
12 Masonville City 127

Politics[edit]

Presidential Elections Results
Presidential Elections Results[13]
Year Republican Democratic Third Parties
2016 61.6% 5,694 32.0% 2,957 6.4% 590
2012 49.4% 4,636 49.2% 4,616 1.3% 126
2008 46.2% 4,113 52.2% 4,649 1.6% 141
2004 53.4% 4,908 46.0% 4,227 0.7% 65
2000 51.2% 4,273 45.6% 3,808 3.2% 268
1996 40.9% 3,065 49.4% 3,704 9.7% 728
1992 37.6% 3,195 36.4% 3,093 26.0% 2,204
1988 46.1% 3,425 53.1% 3,947 0.8% 60
1984 59.6% 4,769 39.5% 3,158 0.9% 74
1980 55.4% 4,316 34.3% 2,671 10.4% 807
1976 55.6% 4,161 42.4% 3,168 2.0% 152
1972 61.2% 4,848 37.2% 2,944 1.6% 128
1968 59.4% 4,650 35.3% 2,760 5.4% 419
1964 42.5% 3,427 57.3% 4,623 0.2% 15
1960 57.6% 5,015 42.4% 3,688 0.0% 0
1956 68.5% 5,732 31.3% 2,621 0.2% 16
1952 73.2% 6,449 26.7% 2,351 0.1% 10
1948 60.8% 4,555 38.4% 2,876 0.9% 67
1944 67.2% 5,164 32.5% 2,498 0.3% 20
1940 67.3% 6,175 32.5% 2,985 0.2% 16
1936 49.6% 4,483 48.1% 4,350 2.4% 213
1932 46.7% 4,088 52.1% 4,559 1.2% 107
1928 63.7% 5,390 36.0% 3,043 0.3% 23
1924 64.7% 4,938 15.0% 1,146 20.3% 1,551
1920 83.0% 5,880 15.7% 1,111 1.4% 97
1916 66.8% 2,827 31.5% 1,332 1.8% 74
1912 34.3% 1,394 34.4% 1,399 31.3% 1,271
1908 60.4% 2,396 37.1% 1,471 2.6% 103
1904 67.0% 2,726 30.4% 1,236 2.6% 104
1900 63.0% 2,805 35.3% 1,570 1.7% 76
1896 60.5% 2,799 38.4% 1,778 1.0% 48

See also[edit]

References[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Archived from the original on July 9, 2011. Retrieved July 16, 2014. 
  2. ^ "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07. 
  3. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  4. ^ Wikisource Ripley, George; Dana, Charles A., eds. (1879). "Delaware, the name of five counties in the United States. V. An E. county of Iowa". The American Cyclopædia. 
  5. ^ "Population and Housing Unit Estimates". Retrieved June 9, 2017. 
  6. ^ "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved July 16, 2014. 
  7. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 16, 2014. 
  8. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 16, 2014. 
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 16, 2014. 
  10. ^ "Population & Housing Occupancy Status 2010". United States Census Bureau American FactFinder. Retrieved May 9, 2011. 
  11. ^ "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31. 
  12. ^ "Archived copy". Archived from the original on December 21, 2013. Retrieved February 10, 2013. 
  13. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-04-25. 

External links[edit]

Coordinates: 42°28′10″N 91°22′13″W / 42.46944°N 91.37028°W / 42.46944; -91.37028