Hiram Walker, of Canadian Club Whisky fame, is credited with putting Harrow on the map. Walker built the railway, which brought grain from the south end of the county into the city for use in his distillery. The tracks remained for over 100 years, and were removed in 1992. The line became the Chrysler Canada Greenway, part of the Trans Canada Trail.
Though early settlers were mostly German, a thriving community of Portuguese came later and still remain. Today Harrow is a community situated along scenic County Road 20 that offers shops and places for antique hunters. Attractions include Colio Winery and historic John R. Park Homestead.
Harrow has organized and hosted an annual agricultural fair every Labour Day weekend for over 150 years, and many people from Essex County and other parts of Ontario attend. Highlights of the fair include a mom calling contest, a pie auction, "bossy" bingo and a tractor pull. The Agriculture and Agri-Food Canada Greenhouse and Processing Crops Research Centre is also located in Harrow. Atlas Tube, a unit of Zekelman Industries, owned by the Zekelman family, is located on the outskirts of town.
For 2001 census:
|Population:||2,935 (+4.6% from 1996)|
|Land area:||2.75 km²|
|Population density:||1,067.3 people/km²|
|Median age:||35.6 (males: 34.2, females: 37.1)|
|Total private dwellings:||1,075|
|Mean household income:||$29,932|