Keswick, IA · standard
ZIP Code 50136
Keokuk County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 445
- 4/sq mi Low-density area
- $75,625
- Median income Near-median income area
- $97,800
- Median home value Below-median home value
- 17.6%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Keswick pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 44%
- household income, US ZIPs
- 9th pct
- home value, US ZIPs
- 4
- people per sq mi
- 89%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 50136 against every reporting US ZIP.
ZIP code 50136 is a sparsely populated ZIP (a standard USPS delivery area) in Keswick, Keokuk County, Iowa, home to just 445 residents across 101.1 square miles, a density of 4 people per square mile, in the Chicago time zone.
ZIP 50136 lands in the middle-income range, with a median household income of $75,625 (1% below the average Iowa ZIP), while per-capita income is $38,342. Both reported hardship measures are comparatively low in absolute terms: poverty is 6.1% and unemployment is 2.9%. Home values sit below the statewide ZIP benchmark: the median is $97,800 (44% below the average Iowa ZIP), and median rent is $1,083; owner occupancy is 89.0%.
Educational attainment sits below the national norm: 17.6% of adults hold a bachelor's degree or higher, the median age is 50.8, and the average commute is -. The page also surfaces 6 ZIP codes within roughly 10 miles and 6 more in Keokuk County, so 50136 can be compared with both its immediate and county-level context.
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 50136, Keswick, 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
445
Population
101.1
Area (sq mi)
4
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 50136?
50.8
Median Age
55.3%
Male
44.7%
Female
2.1%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$75,625
Median Household Income
-1% vs state ZIP avg
$38,342
Per Capita Income
6.1%
Poverty Rate
2.9%
Unemployment Rate
How ZIP 50136 ranks among Iowa ZIPs
Keswick, 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)
$75,625 Top 46% higher than 54% 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 is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
173housing units
173
Total Housing Units
145
Occupied Units
28
Vacant Units
2.59
Avg Household Size
Occupancy Type
$97,800
Median Home Value
-44% vs state ZIP avg
$1,083
Median Rent
1938
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 11 business establishments in ZIP 50136, employing approximately 41 people with a combined annual payroll of $1,812,000.
11
Businesses
41
Employees
$1.8M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 3 | 27.3% |
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 50136 vs 50255 →
ZIP 50136 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50268
What Cheer (50268)
993 residents
- 52222
Deep River (52222)
709 residents
- 50136
Keswick (50136)
445 residents
- 52355 277
Webster (52355)
277 residents
- 52308 132
Millersburg (52308)
132 residents
- 50104 128
Gibson (50104)
128 residents
- 50255 65
Thornburg (50255)
65 residents
What this shows Among its immediate neighbors, ZIP 50136 ranks #3 by population - useful context the national average alone can't give.
ZIP 50136 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52222
Deep River (52222)
$81,964 median income
- 52308
Millersburg (52308)
$79,688 median income
- 50136
Keswick (50136)
$75,625 median income
- 52355
Webster (52355)
$63,750 median income
- 50268
What Cheer (50268)
$59,118 median income
- 50104
Gibson (50104)
$55,625 median income
- 50255
Thornburg (50255)
$39,722 median income
What this shows By household income, ZIP 50136 ranks #3 of 7 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 50136, 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.
More ZIP Codes in Keokuk County
Related Areas
Frequently Asked Questions
What county is ZIP code 50136 in?
ZIP code 50136 (Keswick) is located in Keokuk County, Iowa. Keokuk County contains multiple ZIP codes, see the full list at /counties/keokuk-ia.
What is the population of ZIP code 50136?
ZIP code 50136 in Keswick, IA has a population of 445 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 50136?
The median household income in ZIP 50136 is $75,625, which is 1% below the national average of $76,288.
What is the average home value in ZIP 50136?
The median home value in ZIP 50136 is $97,800, which is 65% below the national average of $278,155.
What is the demographic makeup of ZIP 50136?
The largest racial group in ZIP 50136 is White at 97.6%. Hispanic or Latino residents make up 2.4% of the population.
How many businesses are in ZIP code 50136?
ZIP code 50136 has 11 business establishments employing approximately 41 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 50136?
In ZIP code 50136, 67.2% of residents aged 25+ have a high school diploma or higher, and 17.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 50136?
In ZIP code 50136, approximately 89.0% of occupied housing units are owner-occupied and 11.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 50136?
The poverty rate in ZIP code 50136 is 6.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 50136's numbers, next.
- See how ZIP 50136 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Keswick, 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.