US ZIP Code
77470

Rock Island, TX

Colorado County  ·  Texas

● Active
👥 381 Population ↑ 2% since 2019
💰 $38,977 Median HH Income
▼ 49% below avg ↓ 22% since 2019
🎂 40.0 Median Age ↓ 6% since 2019
🎓 22.2% College Grads
▼ 43% below avg
📊 27.3% Unemployment
▲ 457% above avg ↑ 211% since 2019
ZIP Code Details
ZIP Code77470
CityRock Island
StateTexas (TX)
CountyColorado County
Area Code979
Elevation220 ft
Latitude29.533816
Longitude-96.532663
TimezoneChicago (DST)
FIPS48089
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 54.3% (207) Female 45.7% (174) ♀

Race & Ethnicity

White: 92.7%Hispanic: 3.2%Black: 2.6%Race
White92.7%
Hispanic3.2%
Black2.6%

Age Breakdown

Under 5
12%
5–17
16%
18–24
3%
25–44
32%
45–64
15%
65+
9%

Key Indicators

Median Age40.0 yrs ↓ 6% since 2019
Avg Household Size2.31
Below Poverty22.1% ▲ 121% above avg
College Grads22.2% ▼ 43% below avg
Unemployment27.3% ▲ 457% above avg
HS Graduate62 (25.9%)
Some College37 (15.5%)
Associates87 (36.4%)
Bachelors25 (10.5%)
Graduate Degree28 (11.7%)

Education

HS Grad: 25.9%Some College: 15.5%Associates: 36.4%Bachelors: 10.5%Graduate: 11.7%Edu
HS Grad25.9%
Some College15.5%
Associates36.4%
Bachelors10.5%
Graduate11.7%
Housing & Income

Housing Tenure

Owner: 80%Renter: 20%Tenure
Owner80.0%
Renter20.0%

Home Value Distribution

Under $50k
5%
$50k–100k
23%
$100k–150k
8%
$150k–200k
14%
$200k–300k
7%
$300k–500k
37%
Over $500k
7%

Financials

Median HH Income$38,977 ▼ 49% below avg ↓ 22% since 2019
Total Units270
Vacant Units105
Avg HH Size2.31

Income Distribution

Under $25k
32%
$25k–50k
49%
$50k–75k
13%
$75k–100k
3%
$150k–200k
3%
Employment & Commute

How People Get to Work

Drove Alone
100%

Commute Time

Under 15 min
10%
15–30 min
27%
Over 45 min
63%
Housing Stock

Year Built

1940s–1950s
14%
1960s–1970s
5%
1980s–1990s
5%
2000+
76%

Summary

Total Units270
Vacant105
Owner Occupied80.0%
Renter Occupied20.0%
Avg HH Size2.31
Frequently Asked Questions
ZIP code 77470 is in Rock Island, TX, in Colorado County.
ZIP code 77470 is located in Texas (TX).
ZIP code 77470 is in Colorado County, TX.
ZIP 77470 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 77470 is 381 people (ACS 2023).
The median household income in ZIP code 77470 is $38,977 (ACS 2023).
Home value data not available.
About ZIP Code 77470

ZIP code 77470 is located in Rock Island, Texas, within Colorado County. With a population of 381, this is a sparsely populated ZIP code with a middle-aged community — the median age is 40 years. Economically, 77470 is a lower-income ZIP code: the median household income of $38,977 is below the national average.

The population of 77470 is primarily White (92.65%). Residents are less-educated — 22.2% hold a bachelor's degree or higher, which is below the national average. Poverty affects a significant share of residents at 22.1%. Household income has declined by 22% since 2019.

The unemployment rate in 77470 stands at 27.3%, which is more than double the national average. As in most parts of the country, driving alone is the dominant commute mode at 100%.

Overall, ZIP code 77470 in Rock Island, TX is characterized as lower-income, less-educated, a middle-aged community, and predominantly owner-occupied.