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Knoxville city, IA

ZIP 50138 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 50138

50138 has a population of 11,374 with a median age of 42.8 yrs (47.8% male).

Race & Ethnicity
White
95.2%+55% vs US avg
x
Black
0.3%-97% vs US avg
x
Asian
0.8%-86% vs US avg
x
Hispanic
2.0%-89% vs US avg
x
Other / Two+
1.6%
x
Age Groups
0–17
20.8%-6% vs US avg
x
18–64
58.0%-6% vs US avg
x
65+
21.2%+30% vs US avg
x
Education
Less than HS
5.8%-48% vs US avg
x
High school
35.4%+35% vs US avg
x
Some college
30.4%+5% vs US avg
x
Bachelor's+
28.4%-16% vs US avg
x
Marital Status
Married
60.5%+26% vs US avg
x
Never married
21.3%-37% vs US avg
x
Divorced
12.9%+26% vs US avg
x
Widowed / Separated
5.4%
x
Diversity Index
9/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
8.7%-25% vs US avg
x
Foreign Born
50.3%+262% vs US avg
x
Veterans
8.5%+42% vs US avg
x
Disability
17.2%+28% vs US avg
x
Single Parent
3.0%-62% vs US avg
x
Recent Births
57.0%+882% vs US avg
x
Top ancestry
GermanEnglishDutch

Health & Community Indicators in 50138

Poverty Rate
8.7%-25% vs US avg
x
Veterans
8.5%+42% vs US avg
x
Foreign Born
50.3%+262% vs US avg
x
Single Parent
3.0%-62% vs US avg
x
Disability
17.2%+28% vs US avg
x
Uninsured
2.8%-66% vs US avg
x
SNAP Benefits
11.4%-2% vs US avg
x
Private School
0.1%-99% vs US avg
x
Recent Births
57.0%+882% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population11,374
Median age42.8
Poverty rate8.7%
Demographics statistics
Demographics
White95.2%
Hispanic2.0%
Black0.3%
Asian0.8%
Foreign-born50.3%