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ZIP Code 63621, Missouri

ZIP Code 63621 profile, demographic data, and geographic information.

ZCTA5 63621 is a 5-digit ZIP Code area located in Iron County / Madison County, Missouri. As of official census estimates, it has a reported population of 1,632. The land area covers 76.72 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 1,632 ±411 2020-2024 / Census ACS 5-Year 2024
Median Age 48 yrs ±5.8 2020-2024 / Census ACS 5-Year 2024
Total Households 607 ±142 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 659 ±144
Occupied Housing Units 607 ±142
Vacant Housing Units 52 ±33
Median Home Value $175,300 ±$40,906
Median Gross Rent Suppressed —
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $87,825 ±$29,483
Per Capita Income $34,804 ±$5,843
Poverty Rate 18.3% ±5.8%
Population Below Poverty Level 298 ±120
Unemployment Rate 0.3% ±0.8%
Civilian Labor Force, Employed 594 ±169
Broadband Internet Rate 87.6% ±10.9%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
COUNTY OF IRON
GUS Population: 9,420 (2024)
ID: 168740
County Official County Government
Contact: COMMISSIONER
PO BOX 42, IRONTON MO 63650-0042

Education

Listing 6 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Career and Technical School Nearby 09-12 IRONTON, MO
Regular School Nearby PK-04 IRONTON, MO
Regular School Nearby 09-12 IRONTON, MO
Regular School Nearby 05-08 IRONTON, MO
Regular School Nearby PK-06 ANNAPOLIS, MO
Regular School Nearby 07-12 ANNAPOLIS, MO
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 7 civic institutions across 1 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
OZARK REGIONAL LIBRARY
Library 9.6 mi away 402 N MAIN ST, IRONTON, MO, 63650
(573) 546-2615
ANNAPOLIS BRANCH
Library 10.7 mi away 204 N ALLEN ST, ANNAPOLIS, MO, 63620
(573) 598-3706
LESTERVILLE LIBRARY
Library 15.5 mi away 33285 HIGHWAY 21, LESTERVILLE, MO, 63654
(573) 637-2532
FREDERICKTOWN BRANCH
Library 16.0 mi away 115 S MAIN ST, FREDERICKTOWN, MO, 63645
(573) 783-2120
CENTERVILLE LIBRARY
Library 21.7 mi away 2306 PINE STREET, CENTERVILLE, MO, 63633
(573) 648-2471
FARMINGTON PUBLIC LIBRARY
Library 22.6 mi away 101 NORTH A STREET, FARMINGTON, MO, 63640
(573) 756-5779
PIEDMONT PUBLIC LIBRARY
Library 23.2 mi away 118 W GREEN ST, PIEDMONT, MO, 63957
(573) 223-7036
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at FREDERICKTOWN, MO US, located 15.7 miles from ZCTA5 63621. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 41.6° 20.8° 31.2° 2.96" 2.8"
February 46.9° 23.7° 35.3° 2.78" 3.2"
March 56.8° 31.9° 44.4° 3.82" 1.0"
April 68.1° 41.6° 54.8° 5.27" 0.0"
May 76.1° 51.9° 64.0° 5.32" 0.0"
June 84.1° 60.5° 72.3° 3.56" 0.0"
July 87.9° 64.6° 76.2° 4.01" 0.0"
August 87.0° 62.2° 74.6° 3.90" 0.0"
September 80.1° 53.8° 66.9° 3.47" 0.0"
October 69.0° 41.6° 55.3° 3.29" 0.1"
November 56.0° 32.4° 44.2° 4.60" 0.3"
December 45.1° 24.4° 34.7° 3.32" 1.9"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Arcadia city City 8.4 mi —
Ironton city City 9.1 mi —
Annapolis city City 10.5 mi —
Pilot Knob city City 11.0 mi —
Des Arc village Village 13.8 mi —
Cherokee Pass CDP CDP 14.9 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 63621. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.