Plainsburg, California

{{Short description|Unincorporated community in California, United States}}

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

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

{{Infobox settlement

|name = Plainsburg

|other_name =

|native_name =

|nickname =

|settlement_type =Unincorporated community

|image_skyline =

|imagesize =

|image_caption =

|pushpin_map =California#USA

|pushpin_label_position =bottom

|pushpin_mapsize =

|pushpin_map_caption =Location in California

|pushpin_image=California Locator Map with US.PNG

|subdivision_type = Country

|subdivision_name =United States

|subdivision_type1 = State

|subdivision_name1 = California

|subdivision_type2 =County

|subdivision_name2 = Merced County

|subdivision_type3 =

|subdivision_name3 =

|

|established_title =

|established_date =

|coordinates = {{coord|37|13|59|N|120|19|28|W|region:US-CA|display=inline,title}}

|elevation_footnotes = {{gnis|1659404}}

|elevation_m =67

|elevation_ft =220

|footnotes =

}}

Plainsburg (formerly, Plainsberg and Welch's Store) is an unincorporated community in Merced County, California. It is located {{convert|4|mi|km}} west of Le Grand,{{California's Geographic Names|816}} at an elevation of 220 feet (67 m).

Plainsburg was said to be a thriving farming center in the nineteenth century. It had several businesses and was legally incorporated for a time. The town declined when it was bypassed by the Southern Pacific Railroad to the west and later the Santa Fe Railroad to the east. A grocery store remained as of 1992; the cemetery and elementary school are still present today.{{cite news |last=Rasmussen |first=Dick |date=25 May 1992 |title=Grocery's area nerve center |url=https://www.newspapers.com/image/785683309/ |work=Merced Sun-Star |location=Merced, CA |access-date=3 Dec 2023}}

A post office operated at Plainsburg from 1869 to 1907.