Zip code 52568: Martinsburg, Iowa
Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.
About 52568
52568 is a small-town zip code in Martinsburg, Iowa (Keokuk County), covering 0.3 sq mi of land. About 80 people live here, or 305 per square mile. The median resident is 52.5 years old, compared with 38.9 nationally. With so few residents, the Census figures below are rough estimates with wide margins of error.
The median household earns $44,375 a year, about 55% of the national median of $80,734. 31.3% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $66,300, or 1.5 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 82% of occupied homes are lived in by their owners.
3% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 33.3 minutes each way, and 21% of workers work from home. The most common jobs among working residents are in cleaning and personal care; farming, fishing and forestry; and production and manufacturing.
How 52568 compares
Only about 80 people live here, so these survey estimates have wide margins of error.
- U.S. 334,922,499 · IA 3,210,507
- Population density305/sq miU.S. 95/sq mi · IA 58/sq mi
- Median household income$44,375U.S. $80,734 · IA $75,059
- Per capita income$21,354U.S. $44,673 · IA $40,877
- Median home value$66,300U.S. $332,700 · IA $208,000
- Median age52.5U.S. 38.9 · IA 38.6
- Poverty rate31.3%U.S. 12.5% · IA 11.1%
- U.S. 35.7% · IA 31.4%
- Homeownership rate81.8%U.S. 65.2% · IA 71.7%
- Average commute33.3 minU.S. 26.4 min · IA 19.8 min
- Work from home21.2%U.S. 15.1% · IA 11.3%
- U.S. 5.2% · IA 3.6%
- Diversity index21.9U.S. 61.4 · IA 31.4
- Broadband access57.6%U.S. 91% · IA 88.9%
- Uninsured rate8.8%U.S. 8.4% · IA 5%
- Veterans3.1%U.S. 6.2% · IA 6.5%
- U.S. 14.1% · IA 5.9%
- Housing vacancy2.9%U.S. 10.1% · IA 8.5%
- U.S. 51.1% · IA 43.9%
- U.S. 17.2% · IA 18.1%
- U.S. 22% · IA 22.9%
- Median earnings per worker$31,250U.S. $49,666 · IA $47,712
- U.S. 3.8% · IA 2.9%
- U.S. 9.7% · IA 9.2%
- U.S. 10% · IA 10.2%
- U.S. 14.5% · IA 14.5%
- U.S. 0.483 · IA 0.444
| Measure | 52568 | Keokuk | IA | U.S. | National percentile | Rank in IA |
|---|---|---|---|---|---|---|
| Population | 80 | 9,924 | 3,210,507 | 334,922,499 | — | — |
| Population density | 305/sq mi | 17/sq mi | 58/sq mi | 95/sq mi | — | — |
| Median household income | $44,375 | $62,329 | $75,059 | $80,734 | — | — |
| Per capita income | $21,354 | $35,153 | $40,877 | $44,673 | — | — |
| Median home value | $66,300 | $118,700 | $208,000 | $332,700 | — | — |
| Median age | 52.5 | 43.4 | 38.6 | 38.9 | — | — |
| Poverty rate | 31.3% | 12.1% | 11.1% | 12.5% | — | — |
| Bachelor's degree or higher | 3.1% | 17% | 31.4% | 35.7% | — | — |
| Homeownership rate | 81.8% | 81.3% | 71.7% | 65.2% | — | — |
| Average commute | 33.3 min | 26.5 min | 19.8 min | 26.4 min | — | — |
| Work from home | 21.2% | 9.5% | 11.3% | 15.1% | — | — |
| Unemployment rate | 0% | 4.5% | 3.6% | 5.2% | — | — |
| Diversity index | 21.9 | 10.4 | 31.4 | 61.4 | — | — |
| Broadband access | 57.6% | 83.8% | 88.9% | 91% | — | — |
| Uninsured rate | 8.8% | 4% | 5% | 8.4% | — | — |
| Veterans | 3.1% | 6.5% | 6.5% | 6.2% | — | — |
| Foreign-born residents | 12.5% | 1% | 5.9% | 14.1% | — | — |
| Housing vacancy | 2.9% | 12.5% | 8.5% | 10.1% | — | — |
| Rent-burdened renters | 33.3% | 37.8% | 43.9% | 51.1% | — | — |
| Residents 65 and older | 30% | 22.5% | 18.1% | 17.2% | — | — |
| Residents under 18 | 20% | 22.4% | 22.9% | 22% | — | — |
| Median earnings per worker | $31,250 | $45,100 | $47,712 | $49,666 | — | — |
| Tech workers | 0% | 1.2% | 2.9% | 3.8% | — | — |
| Healthcare workers | 0% | 10.3% | 9.2% | 9.7% | — | — |
| Self-employed workers | 6.1% | 14.6% | 10.2% | 10% | — | — |
| Government workers | 9.1% | 16% | 14.5% | 14.5% | — | — |
| Income inequality (Gini) | 0.317 | 0.441 | 0.444 | 0.483 | — | — |
The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.
People
Age
Race and ethnicity
- White88%
- Black0%
- Hispanic13%
- Asian0%
- Native American0%
- Pacific Islander0%
- Other0%
- Multiracial0%
Language spoken at home (households)
Households
- Households
- 33
- Average household size
- 2.4
- Family households
- 72.7%
- Married couples
- 57.6%
- Living alone
- 24.2%
- Veterans (of adults)
- 3.1%
- Male / female
- 45% / 55%
Income and poverty
Household income distribution
Median household income
Housing
Median home value
Median gross rent
Types of housing
- Housing units
- 34
- Owner-occupied
- 81.8%
- Vacant
- 2.9%
- Median year built
- 1966
- Median rooms
- 6.7
- Renters paying 30%+ of income
- 33.3%
- Renters paying 50%+ of income
- 16.7%
- Home value to income
- 1.5× (U.S. 4.1×)
Work and commute
How people get to work
Commute time (one way)
Jobs and careers
Occupations
Industries
Median earnings by type of work
| Type of work | 52568 | U.S. |
|---|---|---|
| Management, business, science and arts | $50,625 | $74,888 |
| Service | — | $26,804 |
| Sales and office | — | $40,476 |
| Construction and maintenance | — | $49,199 |
| Production and transportation | $51,250 | $39,989 |
Education, internet and health coverage
Highest education (adults 25+)
- High school graduate or higher
- 85.9%
- Bachelor's degree or higher
- 3.1%
- Graduate or professional degree
- 0%
- Households with broadband
- 57.6%
- Cable, fiber or DSL
- 48.5%
- No internet access
- 42.4%
- Without health insurance
- 8.8%
- Limited-English households
- 0%
Geography
- City (USPS)
- Martinsburg
- State
- Iowa
- County
- Keokuk County
- Center point
- 41.1779° N, 92.2508° W
- Land area
- 0.3 sq mi
- Water area
- under 0.1 sq mi
- Time zone
- Central Time (UTC-6, UTC-5 in summer)
- Zip type
- Residential delivery area
Cities and towns within this zip
- Martinsburg100% of zip
Census places overlapping the zip's area. Mail may use a different city name than the municipality.
Zip codes near 52568
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 52563 | Hedrick, IA | 1.7 mi | $98,438 |
| 52562 | Hayesville, IA | 6 mi | — |
| 52576 | Ollie, IA | 7.8 mi | $63,750 |
| 52580 | Packwood, IA | 9.7 mi | $53,368 |
| 52591 | Sigourney, IA | 10 mi | $62,404 |
| 52550 | Delta, IA | 11 mi | $57,745 |
| 52561 | Fremont, IA | 11 mi | $76,058 |
| 52533 | Batavia, IA | 13 mi | $62,799 |
| 52501 | Ottumwa, IA | 13 mi | $63,426 |
| 52530 | Agency, IA | 13 mi | $98,125 |
| 52543 | Cedar, IA | 14 mi | $83,511 |
| 52566 | Kirkville, IA | 14 mi | $58,750 |
Questions about 52568
What city is zip code 52568?
52568 is assigned to Martinsburg, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 52568 in?
52568 is in Keokuk County, Iowa.
What is the population of 52568?
About 80 people live in 52568, according to the Census Bureau's American Community Survey.
What time zone is 52568 in?
52568 is in Central Time.
What is the median household income in 52568?
The median household income in 52568 is $44,375.
What zip codes are near 52568?
The closest zip codes to 52568 are 52563, 52562, 52576, 52580, 52591.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 52568, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.