52305 ZIP Code — Martelle, IA
Jones County, Iowa
ZIP code 52305 is located in Martelle, Iowa, within Jones County. It covers approximately 27.14 square miles and serves a population of 869 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 319.
About ZIP code 52305
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $141,700. Owner-occupancy is high at 80%, well above the national average.
Median household income is $88,851.
The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.
Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.
869
population
27.14
sq mi land
Standard
ZIP type
Central (CT)
timezone
52305 ZIP code map
Cities in ZIP code 52305
Below are the cities the US Postal Service accepts for ZIP code 52305. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Martelle | Preferred |
Nearby ZIP codes
52336 Springville (5.5 mi)
52205 Anamosa (7.6 mi)
52314 Mount Vernon (8.1 mi)
52253 Lisbon (8.6 mi)
52306 Mechanicsville (9.8 mi)
52320 Olin (10.5 mi)
52403 Cedar Rapids (12.1 mi)
52302 Marion (12.2 mi)
52227 Ely (13.4 mi)
52214 Central City (14.4 mi)
52337 Stanwood (14.6 mi)
52212 Center Junction (14.8 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 869 |
| Population density | 32 / sq mi |
| State FIPS | 19 |
| County FIPS | 105 |
| Geography | |
|---|---|
| Land area | 27.14 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 42.0216 |
| Longitude | -91.3505 |
| Timezone | Central (CT) |
| Area code | 319 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 32.4% | 43.4% | 40.1% |
| $50k – $100k | 47.8% | 35.7% | 33.4% |
| $100k – $200k | 13.4% | 16.9% | 21.5% |
| Over $200k | 6.5% | 4.0% | 5.0% |
Demographics & statistics
869
Population
32
People per sq mi
37.1
Median age
$88,851
Median household income
$31,647
Per capita income
$141,700
Median home value
$756
Median monthly rent
79.9%
Home ownership
16.2%
Poverty rate
6.4%
Unemployment
248
Housing units
26.0%
Bachelor's or higher
Age distribution
Male
Female
11
Under 5
12
24
5–9
26
72
10–14
78
29
15–19
32
8
20–24
8
60
25–34
65
57
35–44
61
35
45–54
37
14
55–59
15
25
60–64
28
16
65–74
18
66
75–84
71
0
85+
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 260 | 29.9% |
| 18 and over | 609 | 70.1% |
| 65 and over | 172 | 19.8% |
| Median age | 37.1 years | |
Race & ethnicity
White
95.3%
Two or more races
4.7%
| Group | Count | % |
|---|---|---|
| White | 828 | 95.3% |
| Two or more races | 41 | 4.7% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 32.4% | 43.4% | 40.1% |
| $50k – $100k | 47.8% | 35.7% | 33.4% |
| $100k – $200k | 13.4% | 16.9% | 21.5% |
| Over $200k | 6.5% | 4.0% | 5.0% |
Under $10k
4.9%
$10k–$15k
14.2%
$15k–$25k
1.0%
$25k–$35k
1.4%
$35k–$50k
14.2%
$50k–$75k
5.2%
$75k–$100k
24.3%
$100k–$150k
19.1%
$150k–$200k
6.6%
$200k+
9.0%
| Range | % of households |
|---|---|
| Under $10k | 4.9% |
| $10k–$15k | 14.2% |
| $15k–$25k | 1.0% |
| $25k–$35k | 1.4% |
| $35k–$50k | 14.2% |
| $50k–$75k | 5.2% |
| $75k–$100k | 24.3% |
| $100k–$150k | 19.1% |
| $150k–$200k | 6.6% |
| $200k+ | 9.0% |
| Median income | $88,851 |
Housing
Home values
$50k–$100k
11.7%
$100k–$150k
41.3%
$150k–$200k
5.2%
$200k–$300k
19.1%
$300k–$500k
16.5%
$500k–$1M
5.7%
$1M+
0.4%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $141,700 |
| Median rent / month | $756 |
| Owner occupied | 79.9% |
| Renter occupied | 20.1% |
| Vacant | 5.9% |
| Single-family detached | 89.9% |
| Large apartment buildings | 0.0% |
| Mobile homes | 5.2% |
| Median rooms | 6.3 |
| Avg household size (owned) | 3.28 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 7.2% |
| 1990–1999 | 4.9% |
| 1980–1989 | 0.0% |
| 1970–1979 | 10.8% |
| 1960–1969 | 4.6% |
| 1950–1959 | 22.9% |
| 1940–1949 | 5.2% |
| 1939 or earlier | 44.4% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 6.5% |
| 2 bedrooms | 17.3% |
| 3 bedrooms | 31.7% |
| 4 bedrooms | 40.5% |
| 5+ bedrooms | 3.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.5% |
| 1 vehicle | 19.8% |
| 2 vehicles | 29.2% |
| 3 or more | 46.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 47.9% |
| Electricity | 12.2% |
| Propane / LP gas | 27.1% |
| Wood | 12.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 153 | 53.1% |
| Cohabiting couple | 47 | 16.3% |
| Male householder, no spouse | 40 | 13.9% |
| Female householder, no spouse | 48 | 16.7% |
| Households with children under 18 | 127 | 44.1% |
| Households with seniors (65+) | 64 | 22.2% |
| Average household size | 3.02 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 18.7% | 39.7% |
| Married | 57.9% | 46.9% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.4% | 4.6% |
| Divorced | 23.1% | 8.8% |
Education
Less than 9th grade
0.4%
Some HS, no diploma
1.9%
HS graduate
31.3%
Some college, no degree
27.1%
Associate's degree
13.4%
Bachelor's degree
22.7%
Graduate / professional
3.3%
| Metric | % |
|---|---|
| HS diploma or higher | 97.7% |
| Bachelor's or higher | 26.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 2 | 0.7% |
| Kindergarten | 4 | 1.4% |
| Elementary school | 186 | 64.1% |
| High school | 51 | 17.6% |
| College / grad school | 47 | 16.2% |
Employment
Industry of employment
Education & healthcare
34.5%
Construction
15.0%
Manufacturing
10.0%
Professional & management
7.8%
Finance & real estate
7.0%
Wholesale trade
5.8%
Public administration
5.3%
Agriculture & mining
3.6%
Retail trade
3.4%
Arts, food & hospitality
2.9%
Transportation & utilities
2.4%
Information
1.2%
Other services
1.0%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 27.7% |
| Service | 32.5% |
| Sales & office | 9.7% |
| Natural resources & construction | 15.8% |
| Production & transportation | 14.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.6% |
| Government | 12.9% |
| Self-employed | 6.6% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 83.8% |
| Carpool | 8.8% |
| Public transit | 0.0% |
| Walk | 0.8% |
| Work from home | 6.6% |
| Other means | 0.0% |
| Avg commute (minutes) | 31.7 |
Poverty
All people
16.2%
Under 18 years
21.1%
18 and over
14.8%
Married-couple families
6.5%
Female-led households
68.6%
Income support
| Source | % of households |
|---|---|
| Social Security | 26.4% |
| Retirement income | 21.5% |
| Supplemental Security | 8.0% |
| Cash public assistance | 3.1% |
| Food stamps / SNAP | 9.7% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 38.3% |
| High blood pressure | 34.9% |
| High cholesterol | 34.6% |
| Diabetes | 10.9% |
| Heart disease | 6.9% |
| Stroke | 3.1% |
| Asthma | 9.5% |
| Arthritis | 25.5% |
| Kidney disease | 2.9% |
| Pulmonary disease | 7.2% |
| Cancer | 7.0% |
| Behavior / access | % |
|---|---|
| Smoking | 19.2% |
| Binge drinking | 20.6% |
| No physical activity | 24.9% |
| Less than 7 hrs sleep | 30.6% |
| Depression | 17.9% |
| Fair or poor health | 13.4% |
| Poor mental health | 13.3% |
| Poor physical health | 10.3% |
| No health insurance | 9.2% |
| Visited doctor (checkup) | 75.1% |
| Visited dentist | 68.3% |
| Cholesterol screening | 89.2% |
| Teeth loss | 13.1% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 66 | 10.8% |
| Disability | % |
|---|---|
| Any disability | 14.0% |
| Under 18 | 5.8% |
| 18–64 years | 17.4% |
| 65 and over | 18.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 65.8% |
| Public insurance | 45.1% |
| No insurance | 1.7% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 846 | 97.4% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 868 | 99.9% |
| Born in same state | 868 | 99.9% |
| Born in different state | 643 | 74.0% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 1 | 0.1% |
| Not a US citizen | 1 | 100.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 103 | 11.9% |
| Italian | 76 | 8.7% |
| Polish | 32 | 3.7% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 15 | 1.7% |
| Arab | 4 | 0.5% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 33.1% |
| Internet access | 92.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 52305
What city is ZIP code 52305 in?
ZIP code 52305 is primarily assigned to Martelle, Iowa.
What county is ZIP code 52305 in?
ZIP code 52305 falls within Jones County, Iowa.
What is the poverty rate in ZIP code 52305?
16% of residents in ZIP code 52305 live below the poverty line, above the national average.
Does ZIP code 52305 have a large veteran population?
11% of civilians in ZIP code 52305 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 52305?
The median home value in ZIP code 52305 is $141,700.
What is the population of ZIP code 52305?
ZIP code 52305 has an estimated population of 869 residents, with a density of 32 people per square mile.
What timezone is ZIP code 52305 in?
ZIP code 52305 observes the CST timezone.