Black Rock, AR Profile: Facts, Map & Data


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Black Rock, Arkansas - Basic Facts

The City of Black Rock had a population of 656 as of July 1, 2016. Black Rock ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Arkansas. See peer rankings below.

The primary coordinate point for Black Rock is located at latitude 36.1062 and longitude -91.1075 in Lawrence County. The formal boundaries for the City of Black Rock (see map below) encompass a land area of 3.2 sq. miles and a water area of 0.14 sq. miles. Lawrence County is in the Central time zone (GMT -6). The elevation is 315 feet.

The City of Black Rock (GNIS ID: 2403870) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Black Rock is located within Township of Black Rock, a minor civil division (MCD) of Lawrence County.

Beneath the boundary map are tables with Black Rock population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Black Rock: Blackrock.

Neighborhood Data

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City of Black Rock, AR Boundary Map

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Boundary Maps: Township of Black Rock | Lawrence County | Arkansas Counties

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Black Rock, AR Data & Demographics (As of July 1, 2016)


Total Population 656
Population in Households 656
Population in Familes 569
Population in Group Qrtrs 0
Population Density1 205
Diversity Index2 7


Total Households 257
Average Household Size 2.55
Family Households 191
Average Family Size 3


Total Housing Units 309 (100%)
Owner Occupied HU 192 (62.1%)
Renter Occupied HU 65 (21.0%)
Vacant Housing Units 52 (16.8%)
Median Home Value $86,184
Average Home Value $117,578


Median Household Income $36,632
Average Household Income $45,785
Per Capita Income $17,736
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.15% -0.12%
Households -0.12% -0.23%
Families 0.69% -0.32%
Median Household Income   0.69%
Per Capita Income   1.69%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Black Rock, AR - Peer Comparisons by Rank and Percentile

The table below compares Black Rock to the other 540 incorporated cities, towns and CDPs in Arkansas by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 262 52nd
Population Density1 # 413 24th
Diversity Index2 # 527 3rd
Median Household Income # 273 50th
Per Capita Income # 409 24th

Additional comparisons and rankings can be made with a VERY EASY TO USE Arkansas Census Data Comparison Tool.

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