Affoltern am Albis (abbreviated as Affoltern a.A.; Swiss German: Affoltere) is a town and a municipality in the district of Affoltern in the canton of Zürich in Switzerland.

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Affoltern am Albis
Municipality
Coat of arms
Location of Affoltern am Albis
Affoltern am Albis Show map of Switzerland Affoltern am Albis Show map of Canton of Zurich
Coordinates: 47°17′N 8°27′E
Country	Switzerland
Canton	Zurich
District	Affoltern
Government
• Executive	Gemeinderat with 7 members
• Mayor	Gemeindepräsident Clemens Grötsch unrelated
• Parliament	none (Gemeindeversammlung)
Area [1]
• Total	10.56 km2 (4.08 sq mi)
Elevation (Central crossing near church)	491 m (1,611 ft)
Population  (31 December 2018)[2]
• Total	12,226
• Density	1,200/km2 (3,000/sq mi)
Time zone	UTC+01:00 (Central European Time)
• Summer (DST)	UTC+02:00 (Central European Summer Time)
Postal code(s)	8910 Affoltern am Albis, 8909 Zwillikon
SFOS number	0002
ISO 3166 code	CH-ZH
Localities	Zwillikon, Ferenbach, Loh, Unterdorf, Oberdorf
Surrounded by	Aeugst am Albis, Hedingen, Jonen (AG), Mettmenstetten, Obfelden, Ottenbach, Stallikon
Website	www.affoltern-am-albis.ch SFSO statistics

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Affoltern is first mentioned in 1190 as Afiltre.^[3]

Affoltern has an area of 10.6 km² (4.1 sq mi). Of this area, 45.7% is used for agricultural purposes, while 28.9% is forested. Of the rest of the land, 25% is settled (buildings or roads) and the remainder (0.5%) is non-productive (rivers, glaciers, or mountains).^[4]

The municipality is located west of the Albis hills in the moraine landscape around the Reuss. It was created in the 19th century through the merger of Ober- and Unteraffoltern, Zwillikon, and Loo-Fehrenbach.

Affoltern has a population (as of 31 December 2020) of 12,289.^[5] As of 2007^[update], 25.5% of the population was made up of foreign nationals. Over the last 10 years the population has grown at a rate of 9.8%. Most of the population (as of 2000^[update]) speaks German (82.5%), with Italian being second most common (5.0%) and Serbo-Croatian being third (3.7%).

In the 2007 election the most popular party was the SVP which received 37.5% of the vote. The next three most popular parties were the SPS (17.3%), the FDP (11.4%), and the CSP (11.3%).

The age distribution of the population (as of 2000^[update]) is children and teenagers (0–19 years old) make up 25.2% of the population, while adults (20–64 years old) make up 62.4% and seniors (over 64 years old) make up 12.3%. In Affoltern about 71% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule).

Affoltern has an unemployment rate of 2.8%. As of 2005^[update], there were 85 people employed in the primary economic sector and about 33 businesses involved in this sector. 1238 people are employed in the secondary sector and there are 126 businesses in this sector. 3533 people are employed in the tertiary sector, with 441 businesses in this sector.^[4]

The historical population is given in the following table:^[3]

Affoltern am Albis railway station is a stop and a terminal station of the Zürich S-Bahn on the lines S5 and S14 respectively. Its train station is a 28-minute ride from Zürich Hauptbahnhof.

• Esther Fischer-Homberger (1940–2019), Swiss psychiatrist and medical historian
• Barbara Hofmann (born 1962), humanitarian and Founder of ASEM-Mozambique
• Idy Hegnauer (1909–2006 in Affoltern), Swiss nurse and peace activist
• Ernst Nievergelt (1910 in Affoltern – 1999), Swiss racing cyclist who competed in the 1936 Summer Olympics
• René Strehler (born 1934 in Affoltern), Swiss former professional racing cyclist
• Giuseppe Reichmuth (born 1944 in Affoltern), Swiss painter and artist