ZIP Code 77470

standard

Source:

Rock Island · Colorado County · Texas

Population
338

5/sq mi

Median income
$43,149

▼ 43% vs US

higher than 8% of US ZIPs

Median home value
$122,800

▼ 56% vs US

higher than 18% of US ZIPs

Bachelor's or higher
10.4%

Median age 49.2

Land area
73.5 sq mi

Chicago

ZIP code 77470 in Rock Island, Texas has a population of 338. The median household income is $43,149, which is 43% below the national average. Median home value is $122,800, 56% below the US average. 10.4% of residents hold a bachelor's degree or higher.

ZIP code 77470 is classified by USPS as a standard delivery area and covers roughly 73.5 square miles in Rock Island, Colorado County, Texas. The area is home to 338 residents, producing a population density of 5 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 77470 against Texas and the nation.

On the economic side, the median household income for ZIP 77470 sits at $43,149 (43% below the Texas average), while per-capita income is $18,657. The poverty rate stands at 8.9% and the unemployment rate at 9.3%. On housing, the median home value is $122,800 (50% below the state average) with median rent at per month, and 94.7% of occupied units are owner-occupied, a direct signal of whether 77470 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 10.4% of adults hold a bachelor's degree or higher, the median age is 49.2, and the average commute is . We also surface 3 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Colorado County, so you can benchmark 77470 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 77470, Rock Island, TX · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

338

Population

73.5

Area (sq mi)

5

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 77470?

49.2

Median Age

65.0%

Male

35.0%

Female

0.0%

Foreign-Born

White 98.3%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 1.7%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.0%
Hispanic or Latino 1.2%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$43,149

Median Household Income

-43% vs state

$18,657

Per Capita Income

8.9%

Poverty Rate

9.3%

Unemployment Rate

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 55.3%
Bachelor's Degree or Higher 10.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

267

Total Housing Units

187

Occupied Units

80

Vacant Units

2.21

Avg Household Size

Occupancy Type

Owner 94.7%
Renter 5.3%

$122,800

Median Home Value

-50% vs state

1980

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

Nearby ZIP Codes

Want a side-by-side? Compare 77470 vs 77412 →

ZIP Code City Population Distance
77412 Altair, TX 106 7.6 mi
77475 Sheridan, TX 773 7.0 mi
77442 Garwood, TX 1,137 7.9 mi

More ZIP Codes in Colorado County

Frequently Asked Questions

What county is ZIP code 77470 in?
ZIP code 77470 (Rock Island) is located in Colorado County, Texas. Colorado County contains multiple ZIP codes, see the full list at /counties/colorado-tx.
What is the population of ZIP code 77470?
ZIP code 77470 in Rock Island, TX has a population of 338 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 77470?
The median household income in ZIP 77470 is $43,149, which is 43% below the national average of $76,288.
What is the average home value in ZIP 77470?
The median home value in ZIP 77470 is $122,800, which is 56% below the national average of $278,155.
What is the demographic makeup of ZIP 77470?
The largest racial group in ZIP 77470 is White at 98.3%. Hispanic or Latino residents make up 1.2% of the population.
What is the education level in ZIP code 77470?
In ZIP code 77470, 55.3% of residents aged 25+ have a high school diploma or higher, and 10.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 77470?
In ZIP code 77470, approximately 94.7% of occupied housing units are owner-occupied and 5.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 77470?
The poverty rate in ZIP code 77470 is 8.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Official Data Resources for Rock Island, TX

Verify and explore additional data for this area using these official government sources.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.