55388 ZIP Code — Watertown, MN
Carver County, Minnesota
ZIP code 55388 is located in Watertown, Minnesota, within Carver County. It covers approximately 37.65 square miles and serves a population of 5,997 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 952.
About ZIP code 55388
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 $303,700. Owner-occupancy is high at 84%, well above the national average.
Median household income is $96,198.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.
Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.
5,997
population
37.65
sq mi land
Standard
ZIP type
Central (CT)
timezone
55388 ZIP code map
Cities in ZIP code 55388
Below are the cities the US Postal Service accepts for ZIP code 55388. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Watertown | Acceptable |
| Watertown | Preferred |
Nearby ZIP codes
55360 Mayer (4.9 mi)
55328 Delano (5.4 mi)
55375 Saint Bonifacius (5.7 mi)
55363 Montrose (6.4 mi)
55367 New Germany (7 mi)
55387 Waconia (7.9 mi)
55387 Waconia (7.9 mi)
55359 Maple Plain (8.2 mi)
55364 Mound (8.8 mi)
55390 Waverly (10.1 mi)
55384 Spring Park (10.6 mi)
55386 Victoria (10.7 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 5,997 |
| Population density | 159 / sq mi |
| State FIPS | 27 |
| County FIPS | 019 |
| Geography | |
|---|---|
| Land area | 37.65 sq mi |
| Water area | 1.76 sq mi |
| Latitude | 44.9571 |
| Longitude | -93.8450 |
| Timezone | Central (CT) |
| Area code | 952 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 20.3% | 20.5% | 33.6% |
| $50k – $100k | 33.5% | 28.4% | 31.5% |
| $100k – $200k | 40.4% | 33.8% | 26.5% |
| Over $200k | 5.8% | 17.3% | 8.5% |
Demographics & statistics
5,997
Population
159
People per sq mi
36.3
Median age
$96,198
Median household income
$42,328
Per capita income
$303,700
Median home value
$925
Median monthly rent
83.9%
Home ownership
7.6%
Poverty rate
1.1%
Unemployment
2,007
Housing units
24.0%
Bachelor's or higher
Age distribution
Male
Female
225
Under 5
216
271
5–9
262
152
10–14
146
169
15–19
162
275
20–24
264
348
25–34
336
390
35–44
376
447
45–54
430
261
55–59
251
199
60–64
191
204
65–74
197
86
75–84
82
29
85+
28
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,470 | 24.5% |
| 18 and over | 4,527 | 75.5% |
| 65 and over | 626 | 10.4% |
| Median age | 36.3 years | |
Race & ethnicity
White
95.4%
Two or more races
2.6%
Hispanic or Latino
1.3%
Asian
0.5%
Black or African American
0.2%
| Group | Count | % |
|---|---|---|
| White | 5,800 | 95.4% |
| Two or more races | 155 | 2.6% |
| Hispanic or Latino | 81 | 1.3% |
| Asian | 32 | 0.5% |
| Black or African American | 10 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 20.3% | 20.5% | 33.6% |
| $50k – $100k | 33.5% | 28.4% | 31.5% |
| $100k – $200k | 40.4% | 33.8% | 26.5% |
| Over $200k | 5.8% | 17.3% | 8.5% |
Under $10k
0.9%
$10k–$15k
0.8%
$15k–$25k
1.7%
$25k–$35k
3.9%
$35k–$50k
9.4%
$50k–$75k
20.5%
$75k–$100k
14.8%
$100k–$150k
21.3%
$150k–$200k
20.8%
$200k+
5.9%
| Range | % of households |
|---|---|
| Under $10k | 0.9% |
| $10k–$15k | 0.8% |
| $15k–$25k | 1.7% |
| $25k–$35k | 3.9% |
| $35k–$50k | 9.4% |
| $50k–$75k | 20.5% |
| $75k–$100k | 14.8% |
| $100k–$150k | 21.3% |
| $150k–$200k | 20.8% |
| $200k+ | 5.9% |
| Median income | $96,198 |
Housing
Home values
Under $50k
5.3%
$50k–$100k
0.2%
$100k–$150k
2.0%
$150k–$200k
12.5%
$200k–$300k
29.1%
$300k–$500k
41.2%
$500k–$1M
9.1%
$1M+
0.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $303,700 |
| Median rent / month | $925 |
| Owner occupied | 83.9% |
| Renter occupied | 16.1% |
| Vacant | 5.5% |
| Single-family detached | 81.4% |
| Large apartment buildings | 2.7% |
| Mobile homes | 4.3% |
| Median rooms | 6.8 |
| Avg household size (owned) | 2.79 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 7.1% |
| 2000–2009 | 20.4% |
| 1990–1999 | 16.9% |
| 1980–1989 | 9.8% |
| 1970–1979 | 10.5% |
| 1960–1969 | 4.2% |
| 1950–1959 | 8.6% |
| 1940–1949 | 1.1% |
| 1939 or earlier | 21.4% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.5% |
| 1 bedroom | 5.9% |
| 2 bedrooms | 11.1% |
| 3 bedrooms | 43.5% |
| 4 bedrooms | 31.1% |
| 5+ bedrooms | 6.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.2% |
| 1 vehicle | 17.3% |
| 2 vehicles | 44.2% |
| 3 or more | 36.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 69.0% |
| Electricity | 11.4% |
| Propane / LP gas | 15.2% |
| Fuel oil | 1.7% |
| Wood | 1.7% |
| No fuel used | 0.1% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,314 | 58.7% |
| Cohabiting couple | 199 | 8.9% |
| Male householder, no spouse | 422 | 18.9% |
| Female householder, no spouse | 302 | 13.5% |
| Households with children under 18 | 799 | 35.7% |
| Households with seniors (65+) | 380 | 17.0% |
| Average household size | 2.66 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 32.1% | 32.1% |
| Married | 59.9% | 53.8% |
| Separated | 1.6% | 0.5% |
| Widowed | 1.5% | 2.9% |
| Divorced | 4.9% | 10.6% |
Education
Less than 9th grade
0.3%
Some HS, no diploma
3.5%
HS graduate
27.5%
Some college, no degree
21.8%
Associate's degree
22.9%
Bachelor's degree
16.4%
Graduate / professional
7.6%
| Metric | % |
|---|---|
| HS diploma or higher | 96.2% |
| Bachelor's or higher | 24.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 86 | 6.3% |
| Kindergarten | 141 | 10.3% |
| Elementary school | 617 | 44.9% |
| High school | 310 | 22.5% |
| College / grad school | 221 | 16.1% |
Employment
Industry of employment
Education & healthcare
21.4%
Manufacturing
15.4%
Construction
15.2%
Retail trade
10.1%
Professional & management
9.3%
Arts, food & hospitality
7.6%
Finance & real estate
7.2%
Transportation & utilities
5.1%
Wholesale trade
2.7%
Public administration
2.2%
Other services
2.0%
Information
1.2%
Agriculture & mining
0.6%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 33.2% |
| Service | 14.5% |
| Sales & office | 23.7% |
| Natural resources & construction | 13.1% |
| Production & transportation | 15.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 86.2% |
| Government | 7.8% |
| Self-employed | 6.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 71.6% |
| Carpool | 4.5% |
| Public transit | 0.2% |
| Walk | 3.5% |
| Work from home | 20.0% |
| Other means | 0.2% |
| Avg commute (minutes) | 27.5 |
Poverty
All people
7.6%
Under 18 years
9.3%
18 and over
7.0%
Married-couple families
1.3%
Female-led households
32.9%
Income support
| Source | % of households |
|---|---|
| Social Security | 18.2% |
| Retirement income | 16.9% |
| Supplemental Security | 4.8% |
| Cash public assistance | 1.6% |
| Food stamps / SNAP | 1.8% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 32.2% |
| High blood pressure | 25.7% |
| High cholesterol | 27.5% |
| Diabetes | 7.7% |
| Heart disease | 5.1% |
| Stroke | 2.4% |
| Asthma | 8.7% |
| Arthritis | 21.9% |
| Kidney disease | 2.3% |
| Pulmonary disease | 4.7% |
| Cancer | 6.3% |
| Behavior / access | % |
|---|---|
| Smoking | 16.5% |
| Binge drinking | 21.3% |
| No physical activity | 17.6% |
| Less than 7 hrs sleep | 27.0% |
| Depression | 21.6% |
| Fair or poor health | 9.9% |
| Poor mental health | 13.4% |
| Poor physical health | 8.2% |
| No health insurance | 9.5% |
| Visited doctor (checkup) | 70.7% |
| Visited dentist | 71.2% |
| Cholesterol screening | 89.4% |
| Teeth loss | 9.2% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 226 | 5.0% |
| Disability | % |
|---|---|
| Any disability | 9.6% |
| Under 18 | 4.9% |
| 18–64 years | 9.6% |
| 65 and over | 21.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 83.8% |
| Public insurance | 30.4% |
| No insurance | 3.3% |
| Uninsured under 19 | 4.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 5,556 | 92.6% |
| Spanish | 49 | 0.9% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 28 | 0.5% |
| Other languages | 21 | 0.4% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 5,893 | 98.3% |
| Born in same state | 5,840 | 97.4% |
| Born in different state | 4,980 | 83.0% |
| Foreign born | 53 | 0.9% |
| Naturalized citizen | 104 | 1.7% |
| Not a US citizen | 83 | 79.8% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 1,234 | 20.6% |
| Italian | 554 | 9.2% |
| French | 218 | 3.6% |
| Arab | 147 | 2.5% |
| Ancestry | Count | % |
|---|---|---|
| English | 125 | 2.1% |
| Dutch | 83 | 1.4% |
| German | 38 | 0.6% |
| Irish | 33 | 0.6% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 37.3% |
| Internet access | 96.6% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 55388
What city is ZIP code 55388 in?
ZIP code 55388 is primarily assigned to Watertown, Minnesota.
What county is ZIP code 55388 in?
ZIP code 55388 falls within Carver County, Minnesota.
Is ZIP code 55388 mostly owner-occupied?
84% of occupied units in ZIP code 55388 are owner-occupied, well above the national average.
What is the population of ZIP code 55388?
ZIP code 55388 has an estimated population of 5,997 residents, with a density of 159 people per square mile.
What is the typical home value in ZIP code 55388?
The median home value in ZIP code 55388 is $303,700.
What is the median household income in ZIP code 55388?
The median household income in ZIP code 55388 is $96,198, above the national median of ~$75,000.
What timezone is ZIP code 55388 in?
ZIP code 55388 observes the CST timezone.