ZIP Code 64420 in Allendale, MO

Data Last Updated: March 1, 2026
City:Allendale, Missouri
County:Worth County
Timezone:Central (GMT -06:00)
Local Time:8:30:40 AM
Population:45 [See All]
Area Code:660
Classification:PO Box
Coordinates:40.4858, -94.2885
Land Area:0.439 sq mi
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64420 Allendale, MO - A Rural Worth County Village

ZIP Code 64420, Allendale

Retirement
LocationWorth County, MO
Area0.1 sq mi
Population45
Households27
PO Boxes15 (56% adoption)
Median Age58.8 years (Senior)
ZIP CreatedBefore Oct 2004
Key Facts
  • This is a PO Box Only Zone with no alternative mail delivery available in the surrounding area.
  • With 15 PO Boxes serving 27 households, 56% of homes rely on the post office for mail.
  • The median age of 58.8 years indicates an aging community where younger residents have largely moved away.
  • 70% of housing was built before 1939, making this one of the oldest housing stocks in the region.
  • All 27 housing units are occupied year-round with no seasonal or vacant properties.
  • The village covers just 0.1 square miles, making it one of the smallest geographic ZIP codes.

Community Overview

Allendale sits in Worth County, Missouri, near the Iowa border. Just 45 people live in this village, mostly older residents. The median age is 58.8 years, and households average fewer than two people. It's a quiet place where longtime residents have stayed while younger generations moved away.

Postal Services

This is a PO Box Only Zone. There's no alternative mail delivery anywhere in the area. The Allendale post office maintains 15 PO Boxes serving 27 households, a 56% adoption rate. Rural routes reach addresses outside the village core, but everyone depends on this single post office for mail access.

Historic Housing Stock

The housing stock tells Allendale's story. Of 27 homes, 19 were built before 1939. That's 70% of all housing predating World War II. These aren't vacation homes or seasonal properties. Every single housing unit is occupied year-round, and 81% are owner-occupied. Median home values sit at $208,300, with household incomes averaging $73,333.

Local Character

Street names follow a classic small-town grid: Main Street, Washington Street, Jackson Street, and numbered streets from 1st through 4th. Highway C and Highway 46 connect Allendale to surrounding communities. The entire village covers just a tenth of a square mile.

Street Name Patterns

Numbered Grid Historic Presidential Names

Classic small-town street grid with numbered streets and presidential names like Washington and Jackson.

Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 64420 has 45 residents and 27 households (average 1.67 persons per household). The median age is 58.8 years, significantly older than the state (39.0) and significantly older than the nation (38.8). The gender split is 46.7% male and 53.3% female, which is slightly lower than the state male share (49.1%), making this a female-majority area. Largest groups are White (95.6%, much higher than the state average of 77.0% and well above the national average of 61.6%) and Black or African American (0.0%, much lower than the state average of 11.4% and well below the national average of 12.4%); Hispanic or Latino residents make up 0.0%, which is much lower than the national average (18.7%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:45Source: Census DHC
2024 ACS Population Estimate:31Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:102.5 people per sq mile
Average Income:$73,750Source: Census ACS
Households:27Source: Census DHC
Average House Value:$243,800Source: Census ACS
Persons Per Household:1.67Source: Census DHC
Average Family Size:1.95Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--7795999444706264676435403731
Decennial Census53------------------45--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 58.8

Male Median Age: 54.8

Female Median Age: 63

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male110201100231024201
Female032000001005131242
Total142201101236155443
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:43100.00%
Black:00%
Hispanic:*00%
Asian:00%
American Indian:00%
Hawaiian:00%
Other:00%
Total:43100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:2146.67%54.8 years
Females:2453.33%63.0 years
Total:45100%58.8 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:31100.00%
Native, born in PR, Island Areas, or abroad:00.00%
Foreign born, naturalized U.S. citizen:00.00%
Foreign born, not a U.S. citizen:00.00%
Total Population:31100%
Total Native Population:31100.00%
Total Foreign-born Population:00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $73,750, which is considerably lower than the national median ($80,734), is up $38,500 (109.2%) since 2011 and above its 2019 pre-pandemic level by $16,250. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has stayed about the same from 2011 to 2024. The labor-force participation rate is 28.6%, which is considerably lower than the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Management (62.5%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$35,250$36,250$38,750$38,750$0$55,179$53,750$57,708$57,500$58,750$63,125$0$73,333$73,750
Median Family Income$34,167$35,625$38,846$39,306$61,250$57,321$57,250$58,958$58,438$59,028$63,750$68,333$74,583$0
Median NonFamily Income$0$0$13,750$13,750$0$12,083$12,188$18,750$20,000$0$0$0$0$0
Median Male Income$0$0$0$28,750$0$33,750$34,063$33,750$0$0$0$0$0$0
Median Female Income$0$31,875$0$0$0$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:828.57%
Unemployed:00.00%
Not In Labor Force:2071.43%
Total:28100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:562.50%
Service:337.50%
Sales and Office:00.00%
Natural resources, construction, and maintenance:00.00%
Production, transportation, and material moving:00.00%
Total Civilian Employed Population:8100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $243,800, which is much lower than the national median ($332,700), is up $182,300 (296.42%) since 2011 and above its 2019 pre-pandemic level by $127,100. The median gross rent is $0, which is well under the national median ($1,413), and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$61,500$63,800$63,100$63,800$77,500$69,400$0$0$116,700$117,500$150,000$187,500$208,300$243,800
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:00.00%
$1,000 to $1,499:00.00%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:3100.00%
Total:3100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$0$0$0$0$0$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):735.00%
Owner Occupied (free and clear, no mortgage):1050.00%
Renter Occupied:315.00%
Total Occupied Housing Units:20100%

Occupied Housing Units:2086.96%
Vacant Housing Units (not graphed):313.04%
Total Housing Units:23100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:2295.65%
Multi-Family Units:00.00%
Other Units:14.35%
Total Housing Units:23100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 28.60% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.70%). High school or higher is 92.90%, which is comparable to the national rate (89.60%). The uninsured rate is 6.50%, which is comparable to the national rate (8.40%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%), down 30.80 percentage points since 2011 and below its 2019 pre-pandemic level by 8.30 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (100.00%). College enrollment is 0.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:13.57%
9th to 12th grade, no diploma:13.57%
High school graduate (includes equivalency):932.14%
Some college, no degree:621.43%
Associate's degree:310.71%
Bachelor's degree:828.57%
Graduate or professional degree:00.00%
Total:28100%
High school or higher:2692.86%
Bachelor's degree or higher:828.57%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:2252.38%
Public Insurance:1842.86%
No Insurance:24.76%
Total:42100%
Has Health Insurance:4095.24%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty30.8%25.0%20.0%20.0%7.1%9.5%11.8%8.7%8.3%0.0%0.0%0.0%0.0%0.0%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:00.00%
Elementary school (grades 1-8):1100.00%
High school (grades 9-12):00.00%
College or graduate school:00.00%
Total:1100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):1100.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 64420 is designated for PO Box delivery only; business establishment and employment data are not available.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:24Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:0Source: CBP
1st Quarter Payroll:$0Source: CBP
Annual Payroll:$0Source: CBP
# of Employees:0Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 64420 is located in Worth County, Missouri, within the Metropolitan Statistical Area (CBSA ) and Missouri's 6th Congressional District. This area has a population of 0 people, about 0.00% of whom live in ZIP Code 64420. It covers 0.439 sq mi of land and a water area of 0 sq mi.

CBSA Name:--Source: Census
CBSA Number:--Source: Census
CBSA Type:--Source: Census
CBSA Division:--Source: Census
CBSA Population:0Source: Census
MSA:Source: Census
Land Area:0.439 sq miSource: Census
Water Area:--Source: Census
Congressional District:06Source: USPS
Congressional Land Area:18198.62 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:2900712Source: Census
Place Name:Allendale village; MissouriSource: Census

Adjacent & Nearby ZIP Codes


64421 | | 64402

Schools in ZIP Code 64420


We could not locate which school district 64420 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Worth Co. High 510 East Avenue
Grant City, MO 64456
District: Worth County R-III School DistrictNearby
Worth Co. Elementary 510 East Avenue
Grant City, MO 64456
District: Worth County R-III School DistrictNearby
North Harrison Elem. 12023 Fir St
Eagleville, MO 64442
District: North Harrison R-III School DistrictNearby
North Harrison High 12023 Fir St
Eagleville, MO 64442
District: North Harrison R-III School DistrictNearby
Mount Ayr Elementary 607 E Jefferson
Mount Ayr, IA 50854
District: Mount Ayr Community School DistrictNearby
Zadie Creek School 11315 E 255th Ave
Eagleville, MO 64442
District: Private SchoolNearby
St Gregory Barbarigo School 315 S Davis St
Maryville, MO 64468
District: Private SchoolNearby
Nwmsu Horace Mann Laboratory School 800 University Dr
Maryville, MO 64468
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 64420


Graceland University-Lamoni 1 University Place
Lamoni, IA 50140
Type: Post Secondary
Conception Seminary College 37174 State Hwy V V
Conception, MO 64433-0502
Type: Post Secondary
Northwest Missouri State University 800 University Drive
Maryville, MO 64468-6001
Type: Post Secondary
Southwestern Community College 1501 West Townline Street
Creston, IA 50801
Type: Post Secondary
Graceland University - Trenton 1301 Main Street
Trenton, MO 64683-1824
Type: Post Secondary
North Central Missouri College 1301 Main St
Trenton, MO 64683
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.

  1. U.S. Postal Service [Last Updated: 3/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 3/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 3/1/2026], https://nces.ed.gov