Westphalia, IA · standard
ZIP Code 51578
Shelby County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 79
- 817/sq mi High-density area
- $77,292
- Median income Near-median income area
- $97,600
- Median home value Below-median home value
- 13.9%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Westphalia pairs an above-median household income with among the most affordable home values nationally, in a low-density, homeowner-dominated area.
- Top 42%
- household income, US ZIPs
- 9th pct
- home value, US ZIPs
- 817
- people per sq mi
- 72%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51578 against every reporting US ZIP.
ZIP code 51578 is a sparsely populated ZIP (a standard USPS delivery area) in Westphalia, Shelby County, Iowa, home to just 79 residents across 0.1 square miles, a density of 817 people per square mile, in the Chicago time zone.
With fewer than 100 residents on file, this page keeps the Census figures below and skips the multi-chart expansion used on larger ZIPs. Small-N ACS estimates are already unstable enough without padding the page around them. Median household income is $77,292.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 51578, Westphalia, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
79
Population
0.1
Area (sq mi)
817
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51578?
63.3
Median Age
42.2%
Male
57.8%
Female
0.0%
Foreign-Born
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$77,292
Median Household Income
+1% vs state ZIP avg
$45,207
Per Capita Income
2.6%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 51578 ranks among Iowa ZIPs
Westphalia, IA household income vs. every Iowa ZIP code
Median household income among 911 reporting Iowa ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$77,292 Top 42% higher than 58% of 911 Iowa ZIPs
Each bar is a $20K-wide band; taller bars hold more Iowa ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
70housing units
70
Total Housing Units
61
Occupied Units
9
Vacant Units
1.90
Avg Household Size
Occupancy Type
$97,600
Median Home Value
-44% vs state ZIP avg
1953
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 3 business establishments in ZIP 51578, employing approximately 12 people with a combined annual payroll of $484,000.
3
Businesses
12
Employees
$484K
Annual Payroll
0
Industry Sectors
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 51578 vs 51530 →
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 51578, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
Related Areas
Frequently Asked Questions
What county is ZIP code 51578 in?
ZIP code 51578 (Westphalia) is located in Shelby County, Iowa. Shelby County contains multiple ZIP codes, see the full list at /counties/shelby-ia.
What is the population of ZIP code 51578?
ZIP code 51578 in Westphalia, IA has a population of 79 according to the Census Bureau ACS 2023 estimates.
Take this with you
What to do with ZIP 51578's numbers, next.
- See how ZIP 51578 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Westphalia, IA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.