Zip Code 55123
Eagan, Minnesota — Dakota County
📍 ZIP code 55123 is in Eagan, Dakota County, Minnesota.
ZIP code 55123 is located in Eagan, Dakota County, Minnesota. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 27,288. The area code for ZIP code 55123 is 612.
Quick Answer
Zip code 55123 is in Eagan, Minnesota (Dakota County). It has a population of 27,288, median household income of $134,265, and median home value of $442,000.
Population
27,288
Income
$134,265
Home Value
$442,000
Climate
81°F / 3°F
About Zip Code 55123
Zip code 55123 is located in Eagan, Minnesota, within Dakota County. Home to approximately 27,288 residents, this area sits at an elevation of 903 ft and falls within the Central (CST/CDT) timezone. The local area code is 612.
The median household income is $134,265 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $442,000, and the cost of living index is 159 (59% above the national average of 100).
Summers average a high of 81°F while winters drop to 3°F. The area receives about 34 in of rain and 10 in of snow annually. The zip code covers 11 square miles of land area and 0.9 square miles of water.
Key Statistics
27,288
$134,265
$442,000
Central (CST/CDT)
612
903 ft
11 sq mi
40.4
10,260
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Compare With Nearby Zip Codes
| Metric | 55123 | 55121 | 55122 | 55077 | 55120 | 55425 |
|---|---|---|---|---|---|---|
| City | Eagan, MN | Eagan, MN | Saint Paul, MN | South Saint Paul, MN | Eagan, MN | Minneapolis, MN |
| Population | 27,288 | 9,329 | 31,483 | 14,585 | 5,080 | 10,562 |
| Median Income | $134,265 | $86,929 | $93,980 | $108,314 | $111,900 | $68,517 |
| Home Value | $442,000 | $299,500 | $342,700 | $496,800 | $484,700 | $312,900 |
| Cost of Living | 159 | 97 | 118 | 155 | 152 | 98 |
| Median Age | 40.4 | 36.2 | 39.3 | 37.7 | 40.8 | 33.1 |
Cost of Living
100 = National Average. Eagan's cost of living is 59% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.3x
Demographics
Zip code 55123 has a population of 27,288 people with a median age of 40.4. There are 10,260 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Eagan (55123) population trend from 2010 to 2024
↑ 11.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
81°F
3°F
34 in
10 in
Eagan experiences warm summers with average highs around 81°F. Winters are cold with lows averaging 3°F. The area receives about 10 in of snow per year.
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Housing & Economy
Median Home Value
$442,000
Median Household Income
$134,265
With 10,260 housing units across 11 square miles, 55123 has a housing density of 933 units per square mile. The home price-to-income ratio is 3.3x.
Location & Geography
Latitude
44.8089°
Longitude
-93.1384°
Land Area
11 sq mi
Water Area
0.9 sq mi
Nearby Zip Codes
Zip codes closest to 55123 (Eagan, MN) with distances:
All Zip Codes in Eagan, MN
Other zip codes serving Eagan:
Related Cities in Minnesota
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 55123's $134,265. A way to compare Eagan to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 55123 (Eagan, MN). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Eagan, Minnesota?
Eagan, Minnesota uses zip code 55123 along with 3 other zip codes.
What county is zip code 55123 in?
Zip code 55123 is located in Dakota County, Minnesota.
What is the population of zip code 55123?
The population of zip code 55123 is 27,288 with a median age of 40.4.
Is 55123 in Eagan, Minnesota?
Yes, zip code 55123 is in Eagan, Dakota County, Minnesota. The area code is 612.
Frequently Asked Questions
What city is zip code 55123 in?
Zip code 55123 is in Eagan, Minnesota. It is part of Dakota County and uses the Central (CST/CDT) timezone.
What is zip code 55123?
Zip code 55123 is a U.S. postal code in Eagan, Minnesota (Dakota County). It has a population of 27,288 and covers 11 square miles.
What is the population of zip code 55123?
The population of zip code 55123 (Eagan, MN) is 27,288 with a median age of 40.4. There are approximately 10,260 housing units in this area.
What is the median income in zip code 55123?
The median household income in zip code 55123 (Eagan, MN) is $134,265 per year. The cost of living index is 159 (100 = national average).
What is the average home price in zip code 55123?
The median home value in zip code 55123 (Eagan, MN) is $442,000. The cost of living index is 159 compared to the national average of 100.
What county is zip code 55123 in?
Zip code 55123 is located in Dakota County, Minnesota. The primary city is Eagan.
What is the area code for zip code 55123?
Zip code 55123 in Eagan, MN uses area code 612. It is located in the Central (CST/CDT) timezone.
Is zip code 55123 a good place to live?
Zip code 55123 (Eagan, MN) has a cost of living index of 159 (100 = national average), a median household income of $134,265, and median home values of $442,000. The median age is 40.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 55123?
The cost of living index for zip code 55123 (Eagan, MN) is 159, where 100 represents the national average. This area is above the national average. Median home value: $442,000.
What schools serve zip code 55123?
Zip code 55123 in Eagan, Minnesota is served by the local school district of Dakota County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.