Postal Codes

64421 ZIP Code

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ZIP code 64421 covers Amazonia, Missouri, with a population of about 796.

Population
79632 per square mile
Median age
41.62.9 points above the US average
Poverty rate
14.3%1.9 points above the US average
Typical home value
$178,368up 12.7% in five years
Median rent
$1,2791.3× the Missouri median
Degree or higher
5.4%29.6 points below the US average
Homeownership
82.1%17.1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
8

Where 64421 is

Amazonia, Missouri — 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

Population796
Median age41.6
Family households71.2%
Born outside the US0%
Speaks a language other than English at home1.5%
White (non-Hispanic)90.5%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino5.3%
Veterans10.3%
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$28,585
Poverty rate14.3%
Households on SNAP or cash assistance16.9%

Household income distribution

Under $10k16.2%
$10–15k0.0%
$15–20k10.3%
$20–25k2.0%
$25–30k0.3%
$30–35k2.3%
$35–40k6.0%
$40–45k1.7%
$45–50k4.3%
$50–60k6.3%
$60–75k3.6%
$75–100k25.5%
$100–125k7.6%
$125–150k2.0%
$150–200k8.3%
$200k or more3.6%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed400
Mean adjusted gross income$60,672
Returns declaring $200,000 or more0%
Returns, under $25k25.0%
Returns, $25k–$50k27.5%
Returns, $50k–$75k17.5%
Returns, $75k–$100k12.5%
Returns, $100k–$200k17.5%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$90,000
Median gross rent$1,279
Owner-occupied82.1%
Vacant homes17.5%
Median year built1991

What the homes are

Detached house76.5%
Mobile home23.5%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$178,368as of 2026-07
Typical home value, 1 yearup 4.2%
Typical home value, 5 yearsup 12.7%
Typical home value, 10 yearsup 76%
Typical home value since 2000
200420152026$178,368$59,096

$59,096 in 2004 to $178,368 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.9%
Bachelor's degree or higher5.4%
High school diploma or higher91.2%
Works from home2.5%
Drives to work alone89.8%
Takes public transport0%
Commutes 45 minutes or more11.6%
Health

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

Obesity40.2% 6.8 pts above the national average of 33.4%
Diagnosed diabetes13.6% 1.6 pts above the national average of 12%
Currently smokes21% 7.8 pts above the national average of 13.2%
High blood pressure40.9% 6.8 pts above the national average of 34.1%
Fair or poor general health24% 3.7 pts above the national average of 20.3%
No health insurance (18–64)9.2% 2.1 pts below the national average of 11.3%
Depression25.4% 3.5 pts above the national average of 21.9%
No leisure-time physical activity32.3% 6.9 pts above the national average of 25.4%
Arthritis32.2% 7.1 pts above the national average of 25.1%
Binge drinking16.4% same as the national average of 16%
Taking blood pressure medication77.6% 2.9 pts above the national average of 74.7%
Cancer (non-skin)9% 1.3 pts above the national average of 7.7%
Current asthma11% 0.6 pts above the national average of 10.4%
Coronary heart disease8% 1.8 pts above the national average of 6.2%
Routine check-up in past year77.3% 0.6 pts above the national average of 76.7%
Cholesterol screening83% 2.9 pts below the national average of 85.9%
Cognitive disability19.5% 4.7 pts above the national average of 14.8%
Colorectal screening61.4% 2.9 pts below the national average of 64.3%
COPD10.4% 3.8 pts above the national average of 6.6%
Visited a dentist57.4% 3.9 pts below the national average of 61.3%
Any disability39.8% 9.1 pts above the national average of 30.7%
Lacks emotional support20.2% 4.6 pts below the national average of 24.8%
Food insecurity15.6% 1.5 pts below the national average of 17.1%
Received food stamps13.4% 0.9 pts below the national average of 14.3%
Hearing disability9.7% 3 pts above the national average of 6.7%
High cholesterol39.9% 3.7 pts above the national average of 36.2%
Housing insecurity12.7% 1.1 pts below the national average of 13.8%
Independent living disability10.6% 2.2 pts above the national average of 8.4%
Lacks transport9.1% same as the national average of 9.2%
Loneliness30.2% 4.2 pts below the national average of 34.4%
Mammography use70.2% 5.7 pts below the national average of 75.9%
Poor mental health (14+ days)18.9% 2.1 pts above the national average of 16.8%
Mobility disability18.4% 4.4 pts above the national average of 14%
Poor physical health (14+ days)16.9% 3.4 pts above the national average of 13.5%
Self-care disability4.8% 0.8 pts above the national average of 4%
Utility shut-off threat10% 1.2 pts above the national average of 8.8%
Sleeps under 7 hours38.5% 2.1 pts above the national average of 36.4%
Stroke4.1% 0.7 pts above the national average of 3.4%
All natural teeth lost18.4% 5.4 pts above the national average of 13%
Vision disability5.9% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments8
People employed19
Annual payroll$862,000
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 54.4% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 2 census tracts this ZIP code covers
Expected annual loss66.7 out of 100
Community resilience54.2 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.

Drought96.4Relatively Moderate at its worst in this ZIP code
Landslide95.5Relatively Moderate at its worst in this ZIP code
Tornado84.2Very High at its worst in this ZIP code
Hail82.2Relatively Moderate at its worst in this ZIP code
Wildfire80.9Relatively Low at its worst in this ZIP code
Strong wind77.3Relatively High at its worst in this ZIP code
Cold wave75.1Relatively High at its worst in this ZIP code
Heat wave58.8Relatively High at its worst in this ZIP code
River flooding57.6Relatively Moderate at its worst in this ZIP code
Winter weather57.4Relatively Moderate at its worst in this ZIP code
Ice storm56.2Relatively Moderate at its worst in this ZIP code
Lightning46.6Relatively Moderate at its worst in this ZIP code
Earthquake11.9Very Low at its worst in this ZIP code
Compared with Missouri 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 ZIPMissouriUnited States
Median household income$68,920$78,538
Income per person$28,585$38,497$43,289
Poverty rate14.3%12.6%12.4%
Median home value$90,000$215,600$303,400
Median gross rent$1,279$996$1,348
Homeownership82.1%67.9%65%
Bachelor's degree or higher5.4%31.9%35%
Unemployment rate4.9%4.1%5.2%
Works from home2.5%11.6%13.5%
Born outside the US0%4.4%13.9%
Median age41.638.938.7
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 stationST JOSEPH ROSECRANS AP, MO US15.1 km away
Rain in a year35 in

Average high and low by month

January37.4°F / 17.1°F0.71 in rain
February42.8°F / 21.2°F0.95 in rain
March55.1°F / 31.5°F2.06 in rain
April65.9°F / 41.8°F3.71 in rain
May75.8°F / 53.7°F4.87 in rain
June84.7°F / 63.8°F4.75 in rain
July88.1°F / 67.3°F4.73 in rain
August86.2°F / 64.5°F3.84 in rain
September79.7°F / 54.4°F3.18 in rain
October67.8°F / 42.8°F2.84 in rain
November53.4°F / 30.6°F1.87 in rain
December41.1°F / 21.1°F1.25 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 supermarket8% of this ZIP code's area
No vehicle and far from a supermarket8% of this ZIP code's area
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%.

Savannah R-III School District100% 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 vulnerability21more vulnerable than 21% of US census tracts
Socioeconomic status49more vulnerable than 49% of US census tracts
Household characteristics17more vulnerable than 17% of US census tracts
Racial and ethnic minority status8more vulnerable than 8% of US census tracts
Housing type and transport17more vulnerable than 17% of US census tracts
Walkability4.3 out of 20Least walkable
Nearby ZIP codes

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

64485 Savannah, MO7.3 km away
64449 Fillmore, MO12.3 km away
64505 Saint Joseph, MO13.8 km away
64483 Rosendale, MO16 km away
64506 Saint Joseph, MO16.2 km away
66090 Wathena, KS16.4 km away
64502 Saint Joseph, MO16.6 km away
64501 Saint Joseph, MO16.8 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.

Andrew County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area24.5 sq mi
Water area0.66 sq mi
Population density32 people per sq mi
Latitude, longitude39.9092, -94.9113

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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