PlainZIP

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
$75,625
Median income
$97,800
Median home value
17.6%
Bachelor's or higher

The verdict

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 Iowa average), while per-capita income is $38,342. 6.1% of residents live below the poverty line, and the unemployment rate reads 2.9%. Median home value sits at $97,800 (44% below the state average), median rent at $1,083 a month, and owner-occupancy at 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 -. A geography-based comparison follows: 6 ZIP codes within about 10 miles of 50136, plus 6 more within Keokuk County, give a clearer read than the national average alone.

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 50136?

50.8

Median Age

55.3%

Male

44.7%

Female

2.1%

Foreign-Born

White 97.6%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.6%
Hispanic or Latino 2.4%

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

$38,342

Per Capita Income

6.1%

Poverty Rate

2.9%

Unemployment Rate

How ZIP 50136 ranks nationally

Keswick, IA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$75,625 Top 44% higher than 56% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 67.2%
Bachelor's Degree or Higher 17.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

173

Total Housing Units

145

Occupied Units

28

Vacant Units

2.59

Avg Household Size

Occupancy Type

Owner 89.0%
Renter 11.0%

$97,800

Median Home Value

-44% vs state

$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.

residents

What this shows Among its immediate neighbors, ZIP 50136 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 50136 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
50255 Thornburg, IA 65 2.4 mi
50104 Gibson, IA 128 5.1 mi
52355 Webster, IA 277 5.6 mi
50268 What Cheer, IA 993 5.8 mi
52222 Deep River, IA 709 7.5 mi
52308 Millersburg, IA 132 9.8 mi

More ZIP Codes in Keokuk County

52591 standard
Sigourney, IA
Pop: 3,028
52248 standard
Keota, IA
Pop: 1,815
52563 standard
Hedrick, IA
Pop: 1,583
50268 standard
What Cheer, IA
Pop: 993
52335 standard
South English, IA
Pop: 709
52550 standard
Delta, IA
Pop: 585

Related Areas

Keokuk County Keswick, IA Iowa

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.

Read our methodology to see how this data is sourced, computed, and verified.