Mallory Township, Clayton County, Iowa

Mallory Township is a township in Clayton County, Iowa. About 387 people live there (2020–2024 estimate). It covers 36 sq mi (93.3 km²) of land and uses Central Time. Its local government works under another unit of government.

Des MoinesCedar RapidsDavenport
Mallory Township in Iowa
Mallory Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
387 ± 128
County
Clayton County
School district
Edgewood-Colesburg Community School District
Land area
36 sq mi (93.3 km²)
Type
TownshipGovernment under another
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$61,964 ± $61,393
Median home value
$162,500 ± $114,745
Water area
0 sq mi (0.01 km²)
State
Iowa
Census code (GEOID)
1904392808
Coordinates (central point)
42.682932, -91.191250

These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Census place in Mallory Township

  1. Osterdock (city)136 people

This place’s central point lies inside Mallory Township. A place can reach across the line, and its government, if it has one, can be separate from the township’s.

Bordering areas, nearest first

  1. Millville Township6.0 mi east
  2. Colony Township, Delaware County6.1 mi south
  3. Elk Township6.2 mi west
  4. Jefferson Township7.6 mi north
  5. Volga Township8.2 mi northwest

These towns, townships, cities and boroughs share a boundary with Mallory Township. Distances are straight lines between central points, not driving distances.

Other townships in Clayton County, largest first

  1. Jefferson Township2,675 people
  2. Monona Township2,409 people
  3. Cass Township1,801 people
  4. Boardman Township1,796 people
  5. Mendon Township1,707 people
  6. Garnavillo Township987 people
  7. Lodomillo Township668 people
  8. Volga Township581 people
  9. Grand Meadow Township544 people
  10. Farmersburg Township444 people
  11. Millville Township422 people
  12. Buena Vista Township357 people
All 21
  1. Sperry Township352 people
  2. Read Township326 people
  3. Marion Township310 people
  4. Elk Township288 people
  5. Clayton Township285 people
  6. Wagner Township226 people
  7. Highland Township186 people
  8. Cox Creek Township138 people
  9. Giard Township124 people

People counts are American Community Survey 2020–2024 5-year estimates. See Clayton County for its cities, ZIP Code areas and county seat.

Sunrise and sunset in Mallory Township

Longest day
15 hours 20 minutes around June 21
Shortest day
9 hours 3 minutes around December 21
Earliest sunrise
5:26 AM around June 15
Latest sunrise
7:44 AM the day before clocks go back in November
Earliest sunset
4:30 PM around December 9
Latest sunset
8:46 PM around June 27

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 157:32 AM4:56 PM9 h 24 min
Feb 157:01 AM5:36 PM10 h 35 min
Mar 157:16 AM7:11 PM11 h 55 min
Apr 156:23 AM7:46 PM13 h 23 min
May 155:42 AM8:20 PM14 h 38 min
Jun 155:26 AM8:44 PM15 h 18 min
Jul 155:40 AM8:40 PM15 h
Aug 156:11 AM8:06 PM13 h 55 min
Sep 156:44 AM7:14 PM12 h 30 min
Oct 157:17 AM6:22 PM11 h 5 min
Nov 156:56 AM4:42 PM9 h 46 min
Dec 157:27 AM4:31 PM9 h 4 min

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Before using this answer on a form

A township line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Clayton County or the local office.

Find the township or town where you are now or find your county.

See this area on Census.gov ↗