Plymouth City, Iowa
As of the census of 2000, there were 429 residents, 164 households, and 120 families in the city. The population density was 976.6 people per square mile (377.07/km˛), it is the 345th most densely populated city in the U.S. state of Iowa. There were 171 housing units at an average density of 388.6 per square mile (150.04/km˛). The average household size was 2.62 and the average family size was 3.08. In the city the population was distributed as follows: 28.7% under the age of 18, 5.4% from 18 to 24, 27.5% from 25 to 44, 23.1% from 45 to 64, and 15.4% who were 65 or older. For every 100 females there were 105.3 males. For every 100 females age 18 and over, there were 102.6 males. The median age of the city's population was 39 years, the median age of male residents at 38.7 and the median age of female residents at 39.3. The racial makeup of the city was 424 White, Black or African American, 3 American Indian, Asian, Native Hawaiian, 2 from two or more races and Ohter races.
The median income for a household in the city was $32344, it would be the 595th highest city by median household income in the U.S. state of Iowa. The median income for a family in the city was $40179, it is the 584th highest city by median family income in the U.S. state of Iowa. The per capita income for the city was $12888, it is the 81st lowest city by per capita income in the U.S. state of Iowa. The median income is $20938, The median income for males was $27727, compared to $15833 for females.
In 2000, 137 pupils and students, of which 83 are male and 54 are female, 31.93% of the total population, are in the education system. Of which, total enrollment of student are in, 2 nursery or pri school, 13 kindergarten, 77 elementary school, 31 high school and 14 College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 429 |
| April 2000 Estimate | 429 |
| July 2000 Estimate | 429 |
| July 2001 Estimate | 424 |
| July 2002 Estimate | 417 |
| July 2003 Estimate | 415 |
| July 2004 Estimate | 421 |
| July 2005 Estimate | 425 |
| July 2006 Estimate | 419 |
| July 2007 Estimate | 416 |
| July 2008 Estimate | 413 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 2 | 2 | |
| Kindergarten | 3 | 10 | 13 |
| Elementary school | 47 | 30 | 77 |
| High school | 19 | 12 | 31 |
| College or graduate school | 12 | 2 | 14 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Plymouth city, Iowa | $32344 | $40179 | $12888 |
| Cerro Gordo County, Iowa | $35867 | $46099 | $19184 |
| Iowa, United States | $39469 | $48005 | $19674 |
| United States | $41994 | $50046 | $21587 |