Clay County, Missouri
As of the census of 2000, there were 184006 people in the county, organized into 72558 households, and 50120 families residing in the county. The population density was 464.3 people per square mile (179.27/kmē), it is Missouri's fifth most densely populated county. There were 76230 housing units at an average density of 192.3 per square mile (74.25/kmē). The average household size was 2.5 persons, and the average family size was 3 persons. In the county the population was spread out, with 25.8% under the age of 18, 8.7% from 18 to 24, 32.3% from 25 to 44, 22.3% from 45 to 64, and 10.8% who were 65 or older. For every 100 females there were 94.6 males. For every 100 females age 18 and over, there were 91.8 males. As of July 2008, the estimated population was 215707, The racial or ethnic makeup of the county was 196213 White, 10342 Black or African American, 1089 American Indian, 4265 Asian, 324 Native Hawaiian, and 3474 from two or more races.
The median income for a household in the county was $48347, making it the fifth wealthiest county by median household income among the Missouri. The median income for a family in the county was $56772, it is Missouri's fourth wealthiest county by median family income. The per capita income for the county was $23144, it is the fourth highest county by per capita income in the U.S. state of Missouri.
In 2000, 47240 pupils and students, of which 23547 are male and 23693 are female, 25.67% of the total population, are in the education system. Of which, total enrollment of student are in, 3847 nursery or pri school, 2694 kindergarten, 21250 elementary school, 10007 high school and 9442 College graduate school.
| Rank | City | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Avondale City | Clay County | 0.13 | 0.13 | 0 | 529 | 3996.3 | 17372 | 37159 |
| 2 | Birmingham Village | Clay County | 0.51 | 0.51 | 0 | 214 | 419.5 | 16420 | 36563 |
| 3 | Claycomo Village | Clay County | 2.5 | 2.5 | 0 | 1267 | 506 | 20000 | 39271 |
| 4 | Excelsior Springs City | Clay County, Ray County | 9.84 | 9.82 | 0.02 | 10847 | 1104.9 | 17718 | 36657 |
| 5 | Gladstone City | Clay County | 8 | 8 | 0 | 26365 | 3297.2 | 25105 | 46333 |
| 6 | Glenaire City | Clay County | 0.3 | 0.3 | 0 | 553 | 1861.8 | 21133 | 54327 |
| 7 | Holt City | Clay County, Clinton County | 0.36 | 0.36 | 0 | 405 | 1119.4 | 16841 | 38438 |
| 8 | Kearney City | Clay County | 6.57 | 6.57 | 0 | 5472 | 833.2 | 21147 | 56603 |
| 9 | Liberty City | Clay County | 27.01 | 26.95 | 0.06 | 26232 | 973.3 | 23415 | 52745 |
| 10 | Missouri City City | Clay County | 1.13 | 1.02 | 0.11 | 295 | 290.5 | 17693 | 41875 |
| 11 | Mosby City | Clay County | 1.54 | 1.54 | 0 | 242 | 157.3 | 12617 | 33333 |
| 12 | North Kansas City City | Clay County | 4.64 | 4.36 | 0.27 | 4714 | 1080 | 18967 | 28674 |
| 13 | Oaks Village | Clay County | 0.1 | 0.1 | 0 | 136 | 1429.2 | 26823 | 72500 |
| 14 | Oakview Village | Clay County | 0.17 | 0.17 | 0 | 386 | 2236.8 | 22344 | 46786 |
| 15 | Oakwood Park Village | Clay County | 0.08 | 0.08 | 0 | 183 | 2242.8 | 27990 | 51875 |
| 16 | Oakwood Village | Clay County | 0.2 | 0.2 | 0 | 197 | 989.5 | 35242 | 81412 |
| 17 | Pleasant Valley City | Clay County | 1.3 | 1.3 | 0 | 3321 | 2559.5 | 26084 | 48684 |
| 18 | Prathersville Village | Clay County | 2.24 | 2.24 | 0 | 111 | 49.6 | 20745 | 34063 |
| 19 | Randolph Village | Clay County | 0.34 | 0.34 | 0 | 47 | 137.7 | 23067 | 53750 |
| 20 | Smithville City | Clay County | 13.78 | 13.71 | 0.06 | 5514 | 402.1 | 22669 | 52639 |
| 21 | Independence City | Jackson County, Clay County | 78.45 | 78.33 | 0.13 | 113288 | 1446.3 | 19384 | 38012 |
| 22 | Kansas City City | Jackson County, Clay County, Platte County, Cass County | 318.02 | 313.54 | 4.47 | 441545 | 1408.2 | 20753 | 37198 |
| 23 | Sugar Creek City | Jackson County, Clay County | 8.94 | 8.26 | 0.68 | 3839 | 465 | 20784 | 39967 |
| 24 | Excelsior Estates Village | Ray County, Clay County | 0.22 | 0.22 | 0 | 263 | 1173.1 | 13286 | 26667 |
| 25 | Lawson City | Ray County, Clay County | 2.85 | 2.79 | 0.06 | 2336 | 838.3 | 17438 | 41875 |
| Year | Population |
|---|---|
| April 2000 census | 184006 |
| April 2000 Estimate | 184006 |
| July 2000 Estimate | 184806 |
| July 2001 Estimate | 188205 |
| July 2002 Estimate | 191190 |
| July 2003 Estimate | 193625 |
| July 2004 Estimate | 196995 |
| July 2005 Estimate | 200959 |
| July 2006 Estimate | 206592 |
| July 2007 Estimate | 211525 |
| July 2008 Estimate | 215707 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 1999 | 1848 | 3847 |
| Kindergarten | 1443 | 1251 | 2694 |
| Elementary school | 10679 | 10571 | 21250 |
| High school | 5099 | 4908 | 10007 |
| College or graduate school | 4327 | 5115 | 9442 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Clay County, Missouri | $48347 | $56772 | $23144 |
| Missouri, United States | $37934 | $46044 | $19936 |
| United States | $41994 | $50046 | $21587 |