US ZIP Code
51242

Lester, IA

Lyon County  ·  Iowa

● Active
👥 346 Population ↑ 66% since 2019
💰 $86,406 Median HH Income
▲ 13% above avg ↑ 31% since 2019
🎂 38.3 Median Age ↓ 3% since 2019
🏠 $185,200 Median Home Value
▼ 34% below avg ↑ 52% since 2019
🎓 38.8% College Grads
≈ Avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code51242
CityLester
StateIowa (IA)
CountyLyon County
Area Code712
Elevation1,391 ft
Latitude43.432274
Longitude-96.338057
TimezoneChicago (DST)
FIPS19119
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 47.7% (165) Female 52.3% (181) ♀

Race & Ethnicity

White: 88.4%Hispanic: 9.5%Asian: 0.9%Other: 1.2%Race
White88.4%
Hispanic9.5%
Asian0.9%
Other1.2%

Age Breakdown

Under 5
9%
5–17
15%
18–24
5%
25–44
34%
45–64
16%
65+
7%

Key Indicators

Median Age38.3 yrs ↓ 3% since 2019
Avg Household Size2.91
Below Poverty2.0% ▼ 80% below avg
College Grads38.8% ≈ Avg
Unemployment0.0% ▼ 100% below avg
No HS Diploma5 (2.1%)
HS Graduate103 (42.9%)
Some College8 (3.3%)
Associates31 (12.9%)
Bachelors37 (15.4%)
Graduate Degree56 (23.3%)

Education

No HS: 2.1%HS Grad: 42.9%Some College: 3.3%Associates: 12.9%Bachelors: 15.4%Graduate: 23.3%Edu
No HS2.1%
HS Grad42.9%
Some College3.3%
Associates12.9%
Bachelors15.4%
Graduate23.3%
Housing & Income

Housing Tenure

Owner: 84.9%Renter: 15.1%Tenure
Owner84.9%
Renter15.1%

Home Value Distribution

Under $50k
1%
$50k–100k
7%
$100k–150k
19%
$150k–200k
30%
$200k–300k
9%
$300k–500k
32%
Over $500k
2%

Financials

Median HH Income$86,406 ▲ 13% above avg ↑ 31% since 2019
Median Home Value$185,200 ▼ 34% below avg ↑ 52% since 2019
Home/Income Ratio2.1x (nat avg ~3.5x)
Total Units140
Vacant Units21
Avg HH Size2.91

Income Distribution

Under $25k
3%
$25k–50k
8%
$50k–75k
20%
$75k–100k
30%
$100k–150k
21%
$150k–200k
15%
Over $200k
4%
Employment & Commute

How People Get to Work

Drove Alone
89%
Walked
7%
Work From Home
4%

Commute Time

Under 15 min
48%
15–30 min
33%
30–45 min
14%
Over 45 min
5%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
10%
1960s–1970s
18%
1980s–1990s
14%
2000+
57%

Summary

Total Units140
Vacant21
Owner Occupied84.9%
Renter Occupied15.1%
Avg HH Size2.91
Frequently Asked Questions
ZIP code 51242 is in Lester, IA, in Lyon County.
ZIP code 51242 is located in Iowa (IA).
ZIP code 51242 is in Lyon County, IA.
ZIP 51242 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 51242 is 346 people (ACS 2023).
The median household income in ZIP code 51242 is $86,406 (ACS 2023).
The median home value in ZIP 51242 is $185,200 (ACS 2023).
About ZIP Code 51242

ZIP code 51242 is located in Lester, Iowa, within Lyon County. With a population of 346, this is a sparsely populated ZIP code with a middle-aged community — the median age is 38.3 years. Economically, 51242 is a middle-income ZIP code: the median household income of $86,406 is near the national average.

Real estate in ZIP code 51242 represents an affordable housing market. The median home value of $185,200 is below the national average. Homeownership is strong here — 84.9% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 52% since 2019.

The population of 51242 is primarily White (88.44%). Residents are moderately educated — 38.8% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 2.0%. Household income has grown by 31% since 2019.

As in most parts of the country, driving alone is the dominant commute mode at 73%.

Overall, ZIP code 51242 in Lester, IA is characterized as middle-income, moderately educated, a middle-aged community, and predominantly owner-occupied. With 346 residents, a median household income of $86,406, and a median home value of $185,200, it offers a clear picture of life in this part of Iowa.