ZIP Code 51055, Iowa
ZIP Code 51055 profile, demographic data, and geographic information.
ZCTA5 51055 is a 5-digit ZIP Code area located in Monona County / Woodbury County, Iowa. As of official census estimates, it has a reported population of 1,346. The land area covers 62.76 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 1,346 | ±230 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 44.9 yrs | ±5.4 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 548 | ±96 | 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 | 548 | ±96 |
| Occupied Housing Units | 548 | ±96 |
| Vacant Housing Units | 0 | ±10 |
| Median Home Value | $218,300 | ±$16,386 |
| Median Gross Rent | $781 | ±$145 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $72,143 | ±$26,033 |
| Per Capita Income | $47,894 | ±$14,517 |
| Poverty Rate | 14.6% | ±8% |
| Population Below Poverty Level | 197 | ±113 |
| Unemployment Rate | 6.5% | ±5.9% |
| Civilian Labor Force, Employed | 620 | ±113 |
| Broadband Internet Rate | 93.2% | ±5.2% |
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 MONONA
GUS Population: 8,429 (2024)
ID: 126551
|
County | Official County Government |
Contact: MONONA COUNTY AUDITOR
610 IOWA AVE, ONAWA IA 51040-1671
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | PK-06 | Bronson, IA | |
| Regular School Nearby | PK-05 | DAKOTA CITY, NE | |
| Regular School Nearby | PK-06 | HOMER, NE | |
| Regular School Nearby | 07-12 | HOMER, NE | |
| Regular School Nearby | PK-02 | Sergeant Bluff, IA | |
| Regular School Nearby | 03-05 | Sergeant Bluff, IA | |
| Regular School Nearby | 06-08 | Sergeant Bluff, IA | |
| Regular School Nearby | 09-12 | Sergeant Bluff, IA | |
| Regular School Nearby | PK-05 | MACY, NE | |
| Regular School Nearby | 09-12 | MACY, NE |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Nebraska Indian Community College
|
College | 7.9 mi away | 1111 Hwy 75, Macy, NE, 68039-0428 |
4024942311
|
|
SLOAN PUBLIC LIBRARY
|
Library | 2.4 mi away | 502 EVANS ST, SLOAN, IA, 51055 |
(712) 428-4200
|
|
Little Priest Tribal College
|
College | 10.8 mi away | 601 E. College Drive, Winnebago, NE, 68071-0270 |
4028782380155
|
|
WHITING PUBLIC LIBRARY
|
Library | 7.8 mi away | 407 WHITTIER ST, WHITING, IA, 51063 |
(712) 455-2612
|
|
Iowa School of Beauty-Sioux City
|
College | 17.0 mi away | 3320 Line Drive, Sioux City, IA, 51106 |
7122749733
|
|
HORNICK BRANCH
|
Library | 8.5 mi away | 510 MAIN ST, HORNICK, IA, 51026 |
(712) 874-3616
|
|
Morningside University
|
College | 19.0 mi away | 1501 Morningside Ave, Sioux City, IA, 51106-1751 |
7122745000
|
|
WALTHILL PUBLIC LIBRARY
|
Library | 12.4 mi away | 323 MAIN STREET, WALTHILL, NE, 68067 |
(402) 846-5051
|
|
Western Iowa Tech Community College
|
College | 19.5 mi away | 4647 Stone Ave, Sioux City, IA, 51102-5199 |
7122748733
|
|
SERGEANT BLUFF PUBLIC/SCHOOL LIBRARY
|
Library | 14.4 mi away | 503 4TH ST, SERGEANT BLUFF, IA, 51054 |
(712) 943-7323
|
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 WALTHILL 1E, NE US, located 11.7 miles from ZCTA5 51055. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 30.0° | 10.6° | 20.3° | 0.74" | 6.1" |
| February | 35.0° | 14.3° | 24.7° | 0.97" | 8.3" |
| March | 48.1° | 25.0° | 36.5° | 1.66" | 5.1" |
| April | 61.3° | 36.0° | 48.6° | 3.23" | 2.0" |
| May | 72.8° | 49.0° | 60.9° | 4.05" | 0.1" |
| June | 82.9° | 59.9° | 71.4° | 4.50" | 0.0" |
| July | 87.0° | 63.9° | 75.4° | 3.41" | 0.0" |
| August | 84.4° | 61.0° | 72.7° | 3.64" | 0.0" |
| September | 78.2° | 51.6° | 64.9° | 2.96" | 0.0" |
| October | 64.0° | 38.4° | 51.2° | 2.26" | 0.8" |
| November | 47.5° | 25.3° | 36.4° | 1.38" | 2.9" |
| December | 33.7° | 15.1° | 24.4° | 1.01" | 6.9" |
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 |
|---|---|---|---|
| Sloan city | City | 2.5 mi | — |
| Salix city | City | 7.3 mi | — |
| Whiting city | City | 7.9 mi | — |
| Macy CDP | CDP | 8.4 mi | — |
| Hornick city | City | 8.5 mi | — |
| Winnebago village | Village | 11.0 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 51055. • Official Source Dataset →
- 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.
- 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.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.