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History · Greenleaf

Greenleaf’s post office opened in 1908, and 18% of its homes were built before 1940

Below: maps from 1957 on and the census since 1980.

1908first post office
0on the National Register
18%homes built before 1940
Photo: Visitor7 · CC BY-SA 3.0
Quick answers

How Greenleaf began

When was Greenleaf founded?

1908

The Greenleaf post office opened in 1908, the earliest record of the town by name.

First census: 663 in 19802020 census: 812118 years
Founding year: the first Greenleaf post office (Blevins & Helbock, CC0).

What stands out about Greenleaf’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Greenleaf’s collection

The first neighbors to add old photos shape how Greenleaf’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The story so far

Greenleaf, in brief

Wikipedia doesn’t have a history of Greenleaf yet. The photos, dates and memories neighbors add here are how it gets written.

Greenleaf is a city in Canyon County, Idaho, United States. The population was 812 at the 2020 census. Greenleaf is part of the Boise-Nampa metropolitan area. The town was established by Quakers in the early-1900s and is named after Quaker poet and abolitionist John Greenleaf Whittier.

Its first post office opened in 1908. Between the 2010 and 2020 censuses its population fell from 846 to 812 (-4%).

Intro from Wikipedia. Population: U.S. Census Bureau.

By decade

Greenleaf, decade by decade

On the map

Greenleaf on the map, 1957 to 1971

Every edition of the U.S. Geological Survey’s map of Greenleaf. Tap a year, or press play to watch the town change.

Greenleaf on the 1957 USGS mapGreenleaf on the 1971 USGS map1957Notus sheet · 1:24,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Greenleaf.

People over time

Greenleaf, census by census

0200400600800198020002020Peak: 862

Between 648 and 862 people in every census since 1980.

5 censuses, 1980–2020.

U.S. Census Bureau decennial counts, from the census table on Greenleaf’s Wikipedia page.

Famous people

Famous people close to Greenleaf

Nobody well known was born in Greenleaf itself, so here are the best known from just nearby.

See all →

Questions about Greenleaf’s history

What year was Greenleaf founded?

The Greenleaf post office opened in 1908, the earliest record of the town by name (U.S. post office records).

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →

From Wikimedia Commons (2), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.