Rock Island, WA Profile: Facts, Map & Data

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Rock Island, Washington - Basic Facts

The City of Rock Island had a population of 814 as of July 1, 2017. Rock Island ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Rock Island is located at latitude 47.3729 and longitude -120.1369 in Douglas County. The formal boundaries for the City of Rock Island (see map below) encompass a land area of 0.62 sq. miles and a water area of 0.13 sq. miles. Douglas County is in the Pacific time zone (GMT -8). The elevation is 640 feet.

The City of Rock Island (GNIS ID: 2410975) 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.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Rock Island is located within East Wenatchee Division of Douglas County.

Beneath the boundary map are tables with Rock Island population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Rock Island: Hammond.


Neighborhood Data

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City of Rock Island, WA Boundary Map



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Boundary Maps: East Wenatchee Division | Douglas County | Washington Counties

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Rock Island, WA Data & Demographics (As of July 1, 2017)

POPULATION

Total Population 814
Daytime Population: Workers 45
Daytime Population: Residents 407
Total Daytime Population (TDP) 452
Ratio TDP/Total Population1 0.56
Population in Households 814
Population in Familes 693
Population in Group Qrtrs 0
Population Density2 1,315
Diversity Index3 80
 

INCOME

Median Household Income $50,134
Average Household Income $69,071
Per Capita Income $23,731

HOUSING

Total Housing Units 281 (100%)
Owner Occupied HU 168 (59.8%)
Renter Occupied HU 98 (34.9%)
Vacant Housing Units 15 ( 5.3%)
Median Home Value $200,000
Average Home Value $365,441
 

HOUSEHOLDS

Total Households 266
Average Household Size 3.06
Family Households 194
Average Family Size 4
NOTES
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.

GROWTH RATE / YEAR

2010-2017 2017-2022
Population 0.45% 0.49%
Households 0.21% 0.37%
Families 1.12% 0.31%
Median Household Income   1.97%
Per Capita Income   3.7%

Rock Island, WA - Peer Comparisons by Rank and Percentile

The table below compares Rock Island to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2017 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 # 414 34th
Population Density # 231 63rd
Diversity Index # 29 95th
Median Household Income # 416 34th
Per Capita Income # 476 24th

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

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