Union Lake, Michigan

{{About|the community|the lake|Union Lake (Michigan)}}

{{Use American English|date=July 2025}}

{{Use mdy dates|date=July 2023}}

{{Infobox settlement

|name = Union Lake, Michigan

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|settlement_type = Unincorporated community

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|pushpin_map = Michigan

|pushpin_label_position = left

|pushpin_label = Union Lake

|pushpin_map_caption = Location within the state of Michigan

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|subdivision_type = Country

|subdivision_type1 = State

|subdivision_type2 = County

|subdivision_type3 = Townships

|subdivision_name = United States

|subdivision_name1 = Michigan

|subdivision_name2 = Oakland

|subdivision_name3 = Commerce, Waterford, West Bloomfield, and White Lake

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|timezone = EST

|utc_offset = -5

|timezone_DST = EDT

|utc_offset_DST = -4

|coordinates = {{coord|42|36|53|N|83|26|48|W|display=inline,title}}

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|postal_code_type = ZIP code(s)

|postal_code = 48327 (Waterford)
48387

|area_code = 248

|blank_name = FIPS code

|blank_info = 26-84240{{cite web|url=https://www.census.gov|publisher=United States Census Bureau|access-date=2008-01-31|title=U.S. Census website}}

|blank1_name = GNIS feature ID

|blank1_info = 1627218{{gnis|1627218}}

|website =

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Union Lake is an unincorporated community in Oakland County in the U.S. state of Michigan. It is located at the junction of four townships: Commerce, Waterford, West Bloomfield, and White Lake.

As an unincorporated community, Union Lake has no legally defined area or population statistics of its own, but it does have its own post office with the 48387 ZIP Code, which is used for P.O. Boxes only. Otherwise, the area uses the 48327 Waterford ZIP Code.