Postal Codes

77470 ZIP Code

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ZIP code 77470 covers Rock Island, Texas.

Median age
401.3 points above the US average
Poverty rate
22%9.6 points above the US average
Degree or higher
12.1%22.9 points below the US average
Homeownership
80%15 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
5

Where 77470 is

Rock Island, Texas — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Median age40
Family households81.8%
Born outside the US0%
Speaks a language other than English at home0%
White (non-Hispanic)92.7%
Black (non-Hispanic)2.6%
Asian (non-Hispanic)0%
Hispanic or Latino3.1%
Veterans13.1%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Income per person$17,464
Poverty rate22%
Households on SNAP or cash assistance7.3%

Household income distribution

Under $10k18.8%
$10–15k10.9%
$15–20k0.0%
$20–25k0.0%
$25–30k16.4%
$30–35k0.0%
$35–40k6.7%
$40–45k0.0%
$45–50k29.7%
$50–60k6.7%
$60–75k5.5%
$75–100k3.0%
$100–125k0.0%
$125–150k0.0%
$150–200k2.4%
$200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Owner-occupied80%
Vacant homes38.9%
Median year built1959

What the homes are

Detached house73.3%
Mobile home26.7%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate27.3%
Bachelor's degree or higher12.1%
High school diploma or higher89.8%
Works from home0%
Drives to work alone100%
Takes public transport0%
Commutes 45 minutes or more63.4%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity42.3% 8.9 pts above the national average of 33.4%
Diagnosed diabetes18.3% 6.3 pts above the national average of 12%
Currently smokes20.9% 7.7 pts above the national average of 13.2%
High blood pressure43.8% 9.7 pts above the national average of 34.1%
Fair or poor general health31.5% 11.2 pts above the national average of 20.3%
No health insurance (18–64)18.8% 7.5 pts above the national average of 11.3%
Depression25.9% 4 pts above the national average of 21.9%
No leisure-time physical activity36.6% 11.2 pts above the national average of 25.4%
Arthritis32.2% 7.1 pts above the national average of 25.1%
Binge drinking14.7% 1.3 pts below the national average of 16%
Taking blood pressure medication78.9% 4.2 pts above the national average of 74.7%
Cancer (non-skin)8.5% 0.8 pts above the national average of 7.7%
Current asthma11.4% 1 pts above the national average of 10.4%
Coronary heart disease9.7% 3.5 pts above the national average of 6.2%
Routine check-up in past year75.8% 0.9 pts below the national average of 76.7%
Cholesterol screening83.5% 2.4 pts below the national average of 85.9%
Cognitive disability19.9% 5.1 pts above the national average of 14.8%
Colorectal screening53.2% 11.1 pts below the national average of 64.3%
COPD12.3% 5.7 pts above the national average of 6.6%
Visited a dentist40.9% 20.4 pts below the national average of 61.3%
Any disability42.3% 11.6 pts above the national average of 30.7%
Hearing disability10.1% 3.4 pts above the national average of 6.7%
High cholesterol40.5% 4.3 pts above the national average of 36.2%
Independent living disability13.4% 5 pts above the national average of 8.4%
Mammography use63.3% 12.6 pts below the national average of 75.9%
Poor mental health (14+ days)20.4% 3.6 pts above the national average of 16.8%
Mobility disability23.4% 9.4 pts above the national average of 14%
Poor physical health (14+ days)19.2% 5.7 pts above the national average of 13.5%
Self-care disability7.3% 3.3 pts above the national average of 4%
Sleeps under 7 hours40.7% 4.3 pts above the national average of 36.4%
Stroke5.4% 2 pts above the national average of 3.4%
All natural teeth lost27.2% 14.2 pts above the national average of 13%
Vision disability9.4% 3.8 pts above the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments5
People employed14
Annual payroll$178,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 84.6% of US census tracts
FEMA ratingRelatively High
Expected annual loss81.3 out of 100
Community resilience30.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought98.9Relatively High at its worst in this ZIP code
Hurricane92.2Relatively High at its worst in this ZIP code
Cold wave89.5Very High at its worst in this ZIP code
Wildfire83.1Relatively Low at its worst in this ZIP code
Hail80.2Relatively Moderate at its worst in this ZIP code
Lightning78Very High at its worst in this ZIP code
Tornado76.5Very High at its worst in this ZIP code
Strong wind74.7Relatively High at its worst in this ZIP code
Ice storm64.5Relatively Moderate at its worst in this ZIP code
Heat wave58.4Relatively High at its worst in this ZIP code
Landslide55.1Very Low at its worst in this ZIP code
River flooding53.4Relatively High at its worst in this ZIP code
Winter weather48.9Relatively Moderate at its worst in this ZIP code
Earthquake16.9Very Low at its worst in this ZIP code
Compared with Texas and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTexasUnited States
Median household income$76,292$78,538
Income per person$17,464$39,446$43,289
Poverty rate22%13.8%12.4%
Median home value$260,400$303,400
Median gross rent$1,339$1,348
Homeownership80%62.6%65%
Bachelor's degree or higher12.1%33.1%35%
Unemployment rate27.3%5.1%5.2%
Works from home0%12.8%13.5%
Born outside the US0%17.2%13.9%
Median age4035.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationCOLUMBUS, TX US18.7 km away
Rain in a year45 in

Average high and low by month

January64.1°F / 38.6°F3.67 in rain
February68.2°F / 43°F2.81 in rain
March74.8°F / 49.3°F3.32 in rain
April80.8°F / 55.7°F3.77 in rain
May87.5°F / 64.2°F4.78 in rain
June93.1°F / 69.8°F5.11 in rain
July96°F / 71°F2.93 in rain
August97.9°F / 70.6°F3.3 in rain
September93°F / 65.6°F3.26 in rain
October85.2°F / 56°F4.69 in rain
November73.8°F / 47.2°F4.02 in rain
December66.3°F / 40.5°F3.38 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Rice Consolidated Independent School District67.5% of this ZIP code's land area
Columbus Independent School District32.5% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability84more vulnerable than 84% of US census tracts
Socioeconomic status83more vulnerable than 83% of US census tracts
Household characteristics85more vulnerable than 85% of US census tracts
Racial and ethnic minority status68more vulnerable than 68% of US census tracts
Housing type and transport67more vulnerable than 67% of US census tracts
Walkability4.5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

77442 Garwood, TX10.1 km away
77475 Sheridan, TX10.2 km away
77412 Altair, TX12.5 km away
78943 Glidden, TX18.8 km away
78934 Columbus, TX19.3 km away
78935 Alleyton, TX21.6 km away
77986 Sublime, TX21.8 km away
77460 Nada, TX23 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Colorado County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area28.54 sq mi
Water area0.37 sq mi
Latitude, longitude29.5311, -96.5752

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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