53018 ZIP Code — Delafield, WI

Waukesha County, Wisconsin

ZIP code 53018 is located in Delafield, Wisconsin, within Waukesha County. It covers approximately 11.22 square miles and serves a population of 7,813 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 262.

About ZIP code 53018

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $450,100. Owner-occupancy is high at 76%, well above the national average.

The gap between median ($118,750) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 36% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average.

Educational attainment is high — 55% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 53018 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

7,813

population

11.22

sq mi land

Standard

ZIP type

Central (CT)

timezone

53018 ZIP code map

Cities in ZIP code 53018

Below are the cities the US Postal Service accepts for ZIP code 53018. Using any city not on this list may result in mail delivery delays.

City	Status
Delafield	Preferred

Nearby ZIP codes

53183 Wales (2.6 mi) 53058 Nashotah (4.8 mi) 53188 Waukesha (4.9 mi) 53069 Okauchee (5.5 mi) 53029 Hartland (6.6 mi) 53072 Pewaukee (6.9 mi) 53072 Pewaukee (6.9 mi) 53118 Dousman (7 mi) 53153 North Prairie (7.3 mi) 53189 Waukesha (8.4 mi) 53066 Oconomowoc (8.4 mi) 53186 Waukesha (8.9 mi)

Demographics updated 05/2026

Population
Total population	7,813
Population density	696 / sq mi
State FIPS	55
County FIPS	133

Geography
Land area	11.22 sq mi
Water area	1.17 sq mi
Latitude	43.0425
Longitude	-88.3891
Timezone	Central (CT)
Area code	262

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	24.4%	26.7%	39.4%
$50k – $100k	23.5%	29.0%	33.0%
$100k – $200k	38.5%	32.1%	22.4%
Over $200k	13.7%	12.2%	5.2%

Demographics & statistics

7,813

Population

696

People per sq mi

47.5

Median age

$118,750

Median household income

$65,435

Per capita income

$450,100

Median home value

$1,503

Median monthly rent

76.1%

Home ownership

6.7%

Poverty rate

1.5%

Unemployment

2,603

Housing units

55.2%

Bachelor's or higher

Age distribution

Male Female

275

Under 5

269

215

5–9

211

325

10–14

318

191

15–19

187

20–24

378

25–34

370

420

35–44

410

463

45–54

454

375

55–59

367

361

60–64

354

599

65–74

586

209

75–84

205

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,851	23.7%
18 and over	5,962	76.3%
65 and over	1,734	22.2%
Median age	47.5 years

Race & ethnicity

White 83.1%

Two or more races 6.5%

Hispanic or Latino 5.8%

Black or African American 2.3%

Asian 1.6%

Other race 0.6%

American Indian / Alaska Native 0.1%

Group	Count	%
White	6,895	83.1%
Two or more races	543	6.5%
Hispanic or Latino	480	5.8%
Black or African American	190	2.3%
Asian	129	1.6%
Other race	48	0.6%
American Indian / Alaska Native	8	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	24.4%	26.7%	39.4%
$50k – $100k	23.5%	29.0%	33.0%
$100k – $200k	38.5%	32.1%	22.4%
Over $200k	13.7%	12.2%	5.2%

Under $10k 1.9%

$10k–$15k 2.4%

$15k–$25k 5.3%

$25k–$35k 2.8%

$35k–$50k 3.8%

$50k–$75k 12.8%

$75k–$100k 12.4%

$100k–$150k 23.6%

$150k–$200k 16.8%

$200k+ 18.3%

Range	% of households
Under $10k	1.9%
$10k–$15k	2.4%
$15k–$25k	5.3%
$25k–$35k	2.8%
$35k–$50k	3.8%
$50k–$75k	12.8%
$75k–$100k	12.4%
$100k–$150k	23.6%
$150k–$200k	16.8%
$200k+	18.3%
Median income	$118,750

Housing

Home values

Under $50k 1.6%

$100k–$150k 1.9%

$150k–$200k 0.8%

$200k–$300k 14.6%

$300k–$500k 41.2%

$500k–$1M 33.2%

$1M+ 6.7%

Housing overview

Metric	Value
Median home value	$450,100
Median rent / month	$1,503
Owner occupied	76.1%
Renter occupied	23.9%
Vacant	5.5%
Single-family detached	77.2%
Large apartment buildings	9.5%
Mobile homes	0.0%
Median rooms	7.1
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.4%
2010–2019	9.1%
2000–2009	10.9%
1990–1999	23.0%
1980–1989	8.8%
1970–1979	18.8%
1960–1969	5.4%
1950–1959	11.0%
1940–1949	2.9%
1939 or earlier	9.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.9%
2 bedrooms	14.9%
3 bedrooms	44.4%
4 bedrooms	24.6%
5+ bedrooms	7.2%

Vehicles per household

Vehicles	% of households
No vehicle	2.3%
1 vehicle	23.0%
2 vehicles	48.1%
3 or more	26.6%

Heating fuel

Fuel type	%
Utility gas	78.2%
Electricity	17.6%
Propane / LP gas	1.1%
Fuel oil	1.6%
Wood	0.7%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	1,988	62.6%
Cohabiting couple	178	5.6%
Male householder, no spouse	401	12.6%
Female householder, no spouse	609	19.2%
Households with children under 18	971	30.6%
Households with seniors (65+)	1,194	37.6%
Average household size	2.41

Marital status

Status	Male	Female
Never married	21.1%	18.0%
Married	68.3%	61.5%
Separated	0.6%	0.4%
Widowed	1.2%	6.7%
Divorced	8.8%	13.4%

Education

Less than 9th grade 0.2%

Some HS, no diploma 0.2%

HS graduate 18.9%

Some college, no degree 12.7%

Associate's degree 12.8%

Bachelor's degree 36.8%

Graduate / professional 18.4%

Metric	%
HS diploma or higher	99.6%
Bachelor's or higher	55.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	75	4.3%
Kindergarten	98	5.6%
Elementary school	897	51.3%
High school	360	20.6%
College / grad school	319	18.2%

Employment

Industry of employment

Education & healthcare 23.2%

Manufacturing 18.8%

Professional & management 13.5%

Other services 10.1%

Retail trade 8.8%

Finance & real estate 5.2%

Construction 5.0%

Arts, food & hospitality 4.5%

Public administration 3.7%

Wholesale trade 3.2%

Information 1.7%

Transportation & utilities 1.6%

Agriculture & mining 0.7%

Occupation

Category	%
Management, business & arts	52.0%
Service	17.0%
Sales & office	20.6%
Natural resources & construction	3.3%
Production & transportation	7.1%

Employment type

Type	%
Private sector	80.0%
Government	11.9%
Self-employed	8.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	80.3%
Carpool	2.4%
Public transit	0.5%
Walk	1.0%
Work from home	14.7%
Other means	1.2%
Avg commute (minutes)	23.1

Poverty

All people 6.7%

Under 18 years 13.3%

18 and over 4.7%

Married-couple families 2.4%

Female-led households 36.5%

Income support

Source	% of households
Social Security	35.6%
Retirement income	28.6%
Supplemental Security	1.1%
Cash public assistance	1.3%
Food stamps / SNAP	2.9%

Health indicators

Condition	%
Obesity	29.9%
High blood pressure	28.1%
High cholesterol	33.6%
Diabetes	7.7%
Heart disease	5.0%
Stroke	2.2%
Asthma	8.7%
Arthritis	23.1%
Kidney disease	2.4%
Pulmonary disease	4.5%
Cancer	7.3%

Behavior / access	%
Smoking	11.7%
Binge drinking	23.4%
No physical activity	14.8%
Less than 7 hrs sleep	27.1%
Depression	18.3%
Fair or poor health	8.3%
Poor mental health	11.0%
Poor physical health	7.8%
No health insurance	6.5%
Visited doctor (checkup)	78.1%
Visited dentist	80.0%
Cholesterol screening	91.2%
Teeth loss	6.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	386	6.5%

Disability	%
Any disability	6.5%
Under 18	3.0%
18–64 years	5.2%
65 and over	13.6%

Health insurance coverage

Type	%
Private insurance	84.3%
Public insurance	29.4%
No insurance	0.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,269	93.0%
Spanish	16	0.2%
Other Indo-European	16	0.2%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,649	97.9%
Born in same state	7,486	95.8%
Born in different state	5,555	71.1%
Foreign born	163	2.1%
Naturalized citizen	164	2.1%
Not a US citizen	164	100.0%

Ancestry

Ancestry	Count	%
Italian	1,539	19.7%
French	679	8.7%
Polish	475	6.1%
Arab	145	1.9%
Irish	98	1.3%

Ancestry	Count	%
German	66	0.8%
English	65	0.8%
Dutch	52	0.7%
Norwegian	42	0.5%

Technology access

Metric	% of households
Computer access	40.7%
Internet access	97.2%

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

Frequently asked questions about ZIP code 53018

What city is ZIP code 53018 in?

ZIP code 53018 is primarily assigned to Delafield, Wisconsin.

What county is ZIP code 53018 in?

ZIP code 53018 falls within Waukesha County, Wisconsin.

How educated is the population of ZIP code 53018?

55% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 53018 have a large retiree population?

36% of households in ZIP code 53018 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 53018?

The median home value in ZIP code 53018 is $450,100.

What is the median household income in ZIP code 53018?

The median household income in ZIP code 53018 is $118,750, above the national median of ~$75,000.

What timezone is ZIP code 53018 in?

ZIP code 53018 observes the CST timezone.