52166 ZIP Code — Saint Lucas, IA

Fayette County, Iowa

ZIP code 52166 is located in Saint Lucas, Iowa, within Fayette County. It covers approximately 0.26 square miles and serves a population of 138 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 563.

138

population

0.26

sq mi land

Standard

ZIP type

Central (CT)

timezone

52166 ZIP code map

Cities in ZIP code 52166

Below are the cities the US Postal Service accepts for ZIP code 52166. Using any city not on this list may result in mail delivery delays.

City	Status
Saint Lucas	Acceptable

Demographics updated 05/2026

Population
Total population	138
Population density	531 / sq mi
State FIPS	19
County FIPS	065

Geography
Land area	0.26 sq mi
Water area	0.00 sq mi
Latitude	43.0678
Longitude	-91.9307
Timezone	Central (CT)
Area code	563

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.3%	50.6%	40.1%
$50k – $100k	19.0%	32.8%	33.4%
$100k – $200k	16.7%	13.9%	21.5%
Over $200k	0.0%	2.7%	5.0%

Demographics & statistics

138

Population

531

People per sq mi

38.2

Median age

$58,750

Median household income

$29,354

Per capita income

$87,500

Median home value

Median monthly rent

100.0%

Home ownership

3.6%

Poverty rate

0.0%

Unemployment

Housing units

26.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

25–34

35–44

45–54

55–59

60–64

65–74

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	45	32.6%
18 and over	93	67.4%
65 and over	13	9.4%
Median age	38.2 years

Race & ethnicity

White 100%

Group	Count	%
White	138	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.3%	50.6%	40.1%
$50k – $100k	19.0%	32.8%	33.4%
$100k – $200k	16.7%	13.9%	21.5%
Over $200k	0.0%	2.7%	5.0%

$10k–$15k 5.6%

$15k–$25k 18.5%

$35k–$50k 3.7%

$50k–$75k 35.2%

$75k–$100k 5.6%

$100k–$150k 27.8%

$150k–$200k 3.7%

Range	% of households
$10k–$15k	5.6%
$15k–$25k	18.5%
$35k–$50k	3.7%
$50k–$75k	35.2%
$75k–$100k	5.6%
$100k–$150k	27.8%
$150k–$200k	3.7%
Median income	$58,750

Housing

Home values

$50k–$100k 63.0%

$100k–$150k 14.8%

$150k–$200k 9.3%

$200k–$300k 5.6%

$500k–$1M 7.4%

Housing overview

Metric	Value
Median home value	$87,500
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	22.9%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	7.3
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	5.7%
1990–1999	21.4%
1980–1989	2.9%
1970–1979	7.1%
1960–1969	0.0%
1950–1959	35.7%
1940–1949	0.0%
1939 or earlier	27.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	11.4%
2 bedrooms	22.9%
3 bedrooms	38.6%
4 bedrooms	14.3%
5+ bedrooms	12.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	42.6%
2 vehicles	33.3%
3 or more	24.1%

Heating fuel

Fuel type	%
Utility gas	5.6%
Electricity	29.6%
Propane / LP gas	64.8%

Households & families

Household type	Count	%
Married-couple family	25	46.3%
Cohabiting couple	3	5.6%
Male householder, no spouse	11	20.4%
Female householder, no spouse	15	27.8%
Households with children under 18	21	38.9%
Households with seniors (65+)	10	18.5%
Average household size	2.56

Marital status

Status	Male	Female
Never married	19.6%	31.4%
Married	56.5%	47.1%
Separated	0.0%	0.0%
Widowed	2.2%	3.9%
Divorced	21.7%	17.6%

Education

Less than 9th grade 0.0%

Some HS, no diploma 9.6%

HS graduate 34.9%

Some college, no degree 6.0%

Associate's degree 22.9%

Bachelor's degree 15.7%

Graduate / professional 10.8%

Metric	%
HS diploma or higher	90.4%
Bachelor's or higher	26.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	8	16.3%
Kindergarten	4	8.2%
Elementary school	18	36.7%
High school	9	18.4%
College / grad school	10	20.4%

Employment

Industry of employment

Education & healthcare 34.3%

Manufacturing 28.6%

Agriculture & mining 10.0%

Transportation & utilities 5.7%

Other services 4.3%

Public administration 4.3%

Construction 2.9%

Retail trade 2.9%

Arts, food & hospitality 2.9%

Wholesale trade 1.4%

Finance & real estate 1.4%

Professional & management 1.4%

Occupation

Category	%
Management, business & arts	52.9%
Service	10.0%
Sales & office	8.6%
Natural resources & construction	8.6%
Production & transportation	20.0%

Employment type

Type	%
Private sector	65.7%
Government	25.7%
Self-employed	8.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.9%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	17.1%
Other means	0.0%
Avg commute (minutes)	27.5

Poverty

All people 3.6%

Under 18 years 0.0%

18 and over 5.4%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	24.1%
Retirement income	20.4%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	20.4%

Health indicators

Condition	%
Obesity	34.6%
High blood pressure	39.8%
High cholesterol	35.7%
Diabetes	10.9%
Heart disease	9.1%
Stroke	4.0%
Asthma	8.5%
Arthritis	28.9%
Kidney disease	3.6%
Pulmonary disease	7.5%
Cancer	9.7%

Behavior / access	%
Smoking	14.5%
Binge drinking	18.8%
No physical activity	24.6%
Less than 7 hrs sleep	26.6%
Depression	15.2%
Fair or poor health	13.5%
Poor mental health	11.4%
Poor physical health	10.0%
No health insurance	9.3%
Visited doctor (checkup)	75.7%
Visited dentist	67.4%
Cholesterol screening	90.1%
Teeth loss	14.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	4	4.3%

Disability	%
Any disability	8.0%
Under 18	2.2%
18–64 years	2.5%
65 and over	61.5%

Health insurance coverage

Type	%
Private insurance	81.2%
Public insurance	26.8%
No insurance	1.4%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	124	89.9%
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)	138	100.0%
Born in same state	138	100.0%
Born in different state	113	81.9%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	17	12.3%
Italian	16	11.6%
Dutch	5	3.6%

Ancestry	Count	%
Polish	3	2.2%
French	1	0.7%

Technology access

Metric	% of households
Computer access	39.1%
Internet access	81.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 52166

What city is ZIP code 52166 in?

ZIP code 52166 is primarily assigned to Saint Lucas, Iowa.

What county is ZIP code 52166 in?

ZIP code 52166 falls within Fayette County, Iowa.

Is ZIP code 52166 family-oriented?

33% of residents in ZIP code 52166 are under 18, reflecting a younger, family-oriented community.

What is the typical home value in ZIP code 52166?

The median home value in ZIP code 52166 is $87,500.

What is the population of ZIP code 52166?

ZIP code 52166 has an estimated population of 138 residents, with a density of 535 people per square mile.

What is the median household income in ZIP code 52166?

The median household income in ZIP code 52166 is $58,750, below the national median of ~$75,000.

What timezone is ZIP code 52166 in?

ZIP code 52166 observes the CST timezone.