Black Rock City, Arkansas
According to 2000 Census Bureau, there were 717 residents, 284 households, and 199 families in the city. The population density was 218.6 people per square mile (84.4/kmē), it is 117th least densely populated city in Arkansas. There were 334 housing units at an average density of 101.8 per square mile (39.31/kmē). The average household size was 2.52 people, and the average family size was 3.08 people. In the city the population was distributed as follows: 27.5% under the age of 18, 7.1% from 18 to 24, 24% from 25 to 44, 26.8% from 45 to 64, and 14.6% who were 65 or older. For every 100 females there were 98.1 males. For every 100 females age 18 and over, there were 95.5 males. The median age was 37.9 years, The median age of males was 36.6 years, for females the median age was 39.4 years. The racial makeup of the city was 99.02% White, 0% Black or African American, 0.14% American Indian, 0% Asian, 0% Native Hawaiian, 0.84% from two or more races and 0% Other races.
The median income for a household in the city was $22407, it is 129th poorest city by median household income in Arkansas. The median income for a family in the city was $26917, making it the 114th lowest city by median family income in Arkansas. The per capita income for the city was $11731, making its Arkansas's 128th lowest city by per capita income. The median income of city was $16094, The median income for males was $20000, compared to $14118 for females.
In 2000, 156 pupils and students, of which 44.23% are male and 55.77% are female, 21.76% of the total population, are in the education system. Of which, percentage of enrollment student are in, 8.33% nursery or pri school, 5.13% kindergarten, 52.56% elementary school, 24.36% high school and 9.62% College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 717 |
| April 2000 Estimate | 717 |
| July 2000 Estimate | 713 |
| July 2001 Estimate | 711 |
| July 2002 Estimate | 705 |
| July 2003 Estimate | 698 |
| July 2004 Estimate | 693 |
| July 2005 Estimate | 685 |
| July 2006 Estimate | 673 |
| July 2007 Estimate | 671 |
| July 2008 Estimate | 670 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 3 | 10 | 13 |
| Kindergarten | 3 | 5 | 8 |
| Elementary school | 50 | 32 | 82 |
| High school | 13 | 25 | 38 |
| College or graduate school | 0 | 15 | 15 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Black Rock city, Arkansas | $22407 | $26917 | $11731 |
| Lawrence County, Arkansas | $27139 | $32163 | $13785 |
| Arkansas, United States | $32182 | $38663 | $16904 |
| United States | $41994 | $50046 | $21587 |