Deer River, New York

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

{{Infobox settlement

|official_name = Deer River, New York

|settlement_type = Hamlet

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|pushpin_map = New York#USA

|pushpin_label = Deer River

|subdivision_type = Country

|subdivision_name = United States

|subdivision_type1 = State

|subdivision_name1 = New York

|subdivision_type2 = County

|subdivision_name2 = Lewis

|subdivision_type3 = Town

|subdivision_name3 = Denmark

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|timezone = Eastern (EST)

|utc_offset = -5

|timezone_DST = EDT

|utc_offset_DST = -4

|elevation_footnotes =

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|elevation_ft = 781

|coordinates = {{coord|43|55|47|N|75|35|21|W|region:US-NY|display=inline,title}}

|postal_code_type = ZIP code

|postal_code = 13627

|area_code = 315 & 680

|blank_name = GNIS feature ID

|blank_info = 948232{{cite gnis|948232|Deer River}}

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Deer River is a hamlet in the town of Denmark, Lewis County, New York, United States. The community is located along the Deer River and New York State Route 26, {{convert|3.5|mi}} south-southeast of Carthage and {{convert|1|mi}} west of the Deer River's confluence with the Black River. Deer River had a post office from September 19, 1845, until June 4, 1994; it still has its own ZIP code, 13627.{{cite web|url=http://tools.usps.com/go/ZipLookupAction!input.action|title=USPS - Look Up a ZIP Code|accessdate=September 30, 2017|author=United States Postal Service}}{{cite web|title=Postmaster Finder - Post Offices by ZIP Code|url=http://webpmt.usps.gov/pmt008.cfm|publisher=United States Postal Service|accessdate=September 30, 2017|archive-date=October 17, 2020|archive-url=https://web.archive.org/web/20201017172656/https://webpmt.usps.gov/pmt008.cfm|url-status=dead}}