{{short description|City in Minnesota, United States}} {{Use American English|date=June 2025}} {{Use mdy dates|date=July 2023}} {{Infobox settlement |official_name = Heidelberg, Minnesota |settlement_type = City |nickname = |motto = <!-- Images ---------------> |image_skyline = |imagesize = |image_caption = |image_flag = |image_seal = <!-- Maps -----------------> |image_map = Le_Sueur_County_Minnesota_Incorporated_and_Unincorporated_areas_Heidelberg_Highlighted.svg |mapsize = 250px |map_caption = Location of Heidelberg, Minnesota |image_map1 = |mapsize1 = |map_caption1 = <!-- Location -------------> |subdivision_type = Country |subdivision_name = United States |subdivision_type1 = State |subdivision_name1 = Minnesota |subdivision_type2 = County |subdivision_name2 = Le Sueur <!-- Government -----------> |government_footnotes = |government_type = |leader_title = Mayor |leader_name = Lori Weldon |leader_title1 = |leader_name1 = |established_title = Platted |established_date = December 4, 1878 |established_title1 = Incorporated |established_date1 = June 26, 1894 <!-- Area -----------------> |unit_pref = Imperial |area_footnotes = <ref name="CenPopGazetteer2023">{{cite web|title=2023 U.S. Gazetteer Files|url=https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2023_Gazetteer/2023_gaz_place_27.txt|publisher=United States Census Bureau|accessdate=July 24, 2022}}</ref> |area_magnitude = |area_total_km2 = 1.356 |area_land_km2 = 1.356 |area_water_km2 = 0.000 |area_total_sq_mi = 0.524 |area_land_sq_mi = 0.524 |area_water_sq_mi = 0.000 <!-- Population -----------> |population_as_of = 2020 |population_est = 132 |pop_est_as_of = 2022 |pop_est_footnotes = <ref name="USCensusEst2022"/> |population_footnotes = <ref name="2020 Census (City)"/> |population_total = 137 |population_density_km2 = 101.01 |population_density_sq_mi = 261.45 <!-- General information --> |timezone = Central (CST) |utc_offset = −6 |timezone_DST = CDT |utc_offset_DST = −5 |elevation_footnotes = <ref name=gnis/> |elevation_m = 321 |elevation_ft = 1053 |coordinates = {{coord|44|30|01|N|93|37|42|W|region:US-MN|display=inline,title}} |postal_code_type = ZIP Code |postal_code = 56071 |area_code = 952 |blank_name = FIPS code |blank_info = 27-28214 |blank1_name = GNIS feature ID |blank1_info = 2394346<ref name=gnis>{{GNIS|2394346}}</ref> |website = {{URL|https://www.cityofheidelbergmn.com/|cityofheidelbergmn.com}} |blank2_name = Sales tax |blank2_info = 7.375%<ref>{{cite web|url=https://www.avalara.com/taxrates/en/state-rates/minnesota/cities/heidelberg.html|title=Heidelberg (MN) sales tax rate|access-date=February 8, 2024}}</ref> |footnotes = }}
'''Heidelberg''' is a city in Le Sueur County, Minnesota, United States. The population was 137 at the 2020 census.<ref name="2020 Census (City)">{{cite web|title=Explore Census Data |url=https://data.census.gov/profile/Heidelberg_city,_Minnesota?g=160XX00US2728214 |publisher=United States Census Bureau |access-date=February 8, 2024}}</ref>
==Geography== According to the United States Census Bureau, the city has a total area of {{convert|0.524|sqmi|sqkm|2}}, all land.<ref name="CenPopGazetteer2023"/>
County Highway 28 serves as a main route in the community. Minnesota State Highway 13 passes nearby.
==History== Heidelberg was platted on December 4, 1878, and named by its original German settlers (Frank Heil and Frederick Ihrig) after Heidelberg, in Germany.<ref name="Upham 301">{{cite book|url=https://archive.org/details/minnesotageogra00uphagoog |title=Minnesota Geographic Names: Their Origin and Historic Significance |publisher=Minnesota Historical Society |last=Upham |first=Warren |year=1920 |page=[https://archive.org/details/minnesotageogra00uphagoog/page/n320 301]}}</ref> A post office operated in the community from 1872 until 1903.<ref>{{cite web|url=http://www.postalhistory.com/postoffices.asp?task=display&state=MN&county=Le+Sueur |title=Le Sueur County County |publisher=Jim Forte Postal History |accessdate=July 18, 2015}}</ref> Heidelberg was incorporated on June 26, 1894.<ref name="Upham 301" />
==Demographics== {{US Census population |1900= 114 |1910= 111 |1920= 73 |1930= 56 |1940= 71 |1950= 61 |1960= 44 |1970= 72 |1980= 102 |1990= 73 |2000= 72 |2010= 122 |2020= 137 |estyear=2022 |estimate=132 |estref=<ref name="USCensusEst2022">{{cite web|url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-total-cities-and-towns.html |date=February 8, 2024|title=City and Town Population Totals: 2020-2022|publisher=United States Census Bureau|accessdate=February 8, 2024}}</ref> |align-fn=center |footnote=U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=Census of Population and Housing|publisher=census.gov|accessdate=June 4, 2015}}</ref><br>2020 Census<ref name="2020 Census (City)"/> }}
The median income for a household in the city as of 2009 was $69,686. The per capita income for the city was $25,398. None of the population or the families were below the poverty line.
===2010 census=== As of the 2010 census, there were 122 people, 41 households, and 34 families residing in the city. The population density was {{convert|230.2|PD/sqmi|PD/km2|1}}. There were 47 housing units at an average density of {{convert|88.7|/sqmi|/km2|1}}. The racial makeup of the city was 100.0% White. Hispanic or Latino of any race were 1.6% of the population.
There were 41 households, of which 51.2% had children under the age of 18 living with them, 75.6% were married couples living together, 4.9% had a female householder with no husband present, 2.4% had a male householder with no wife present, and 17.1% were non-families. 12.2% of all households were made up of individuals, and 4.9% had someone living alone who was 65 years of age or older. The average household size was 2.98 and the average family size was 3.32.
The median age in the city was 40.3 years. 33.6% of residents were under the age of 18; 2.4% were between the ages of 18 and 24; 27.9% were from 25 to 44; 25.4% were from 45 to 64; and 10.7% were 65 years of age or older. The gender makeup of the city was 55.7% male and 44.3% female.
==References== {{reflist}}
==External links== * [https://www.cityofheidelbergmn.com/ City of Heidelberg – Official Website]
{{Le Sueur County, Minnesota}}
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Category:Cities in Minnesota Category:Cities in Le Sueur County, Minnesota Category:1878 establishments in Minnesota