The City of Rock Island had a population of 873 as of July 1, 2018. 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.
Alternate Unofficial Names for Rock Island: Hammond.
|Population in Households||873|
|Population in Familes||748|
|Population in Group Qrtrs||0|
|Median Household Income||$56,173|
|Average Household Income||$79,150|
|Per Capita Income||$27,062|
|Total Housing Units||301 (100%)|
|Owner Occupied HU||181 (60.1%)|
|Renter Occupied HU||104 (34.6%)|
|Vacant Housing Units||16 ( 5.3%)|
|Median Home Value||$214,706|
|Average Home Value||$375,824|
|Average Household Size||3.06|
|Average Family Size||4|
GROWTH RATE / YEAR
|Median Household Income||3.03%|
|Per Capita Income||2.49%|
The table below compares Rock Island to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2018 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.
|Total Population||# 409||35th|
|Population Density||# 220||65th|
|Diversity Index||# 29||96th|
|Median Household Income||# 348||45th|
|Per Capita Income||# 402||36th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.