Greenfield is a city in Weakley County, Tennessee, United States. The population was 2,182 at the 2010 census and 2,078 in 2018.

Greenfield is located at 36°9′25″N 88°48′5″W / 36.15694°N 88.80139°W / 36.15694; -88.80139 (36.156875, -88.801290).

According to the United States Census Bureau, the city has a total area of 3.6 square miles (9.3 km), of which 3.6 square miles (9.3 km) is land and 0.04 square miles (0.10 km) (0.55%) is water.

Historical population

Census	Pop.	Note	%±
1880	320		—
1890	801		150.3%
1910	1,516		—
1920	1,474		−2.8%
1930	1,429		−3.1%
1940	1,509		5.6%
1950	1,706		13.1%
1960	1,779		4.3%
1970	2,050		15.2%
1980	2,109		2.9%
1990	2,105		−0.2%
2000	2,208		4.9%
2010	2,182		−1.2%
2020	2,031		−6.9%
Sources:

Greenfield racial composition

Race	Num.	Perc.
White (non-Hispanic)	1,779	87.59%
Black or African American (non-Hispanic)	145	7.14%
Native American	9	0.44%
Asian	1	0.05%
Other/Mixed	63	3.1%
Hispanic or Latino	34	1.67%

As of the 2020 United States census, there were 2,031 people, 1,017 households, and 600 families residing in the city.

As of the census of 2000, there were 2,208 people, 925 households, and 624 families residing in the city. The population density was 611.6 inhabitants per square mile (236.1/km). There were 1,007 housing units at an average density of 278.9 per square mile (107.7/km). The racial makeup of the city was 90.49% White, 8.56% African American, 0.36% Native American, 0.05% Asian, 0.05% from other races, and 0.50% from two or more races. Hispanic or Latino of any race were 0.50% of the population.

There were 925 households, out of which 30.6% had children under the age of 18 living with them, 49.9% were married couples living together, 14.5% had a female householder with no husband present, and 32.5% were non-families. 30.1% of all households were made up of individuals, and 16.3% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.95.

In the city, the population was spread out, with 24.7% under the age of 18, 8.8% from 18 to 24, 28.1% from 25 to 44, 21.7% from 45 to 64, and 16.6% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 85.5 males. For every 100 females age 18 and over, there were 81.0 males.

The median income for a household in the city was $26,380, and the median income for a family was $35,417. Males had a median income of $27,153 versus $19,507 for females. The per capita income for the city was $14,215. About 12.7% of families and 14.7% of the population were below the poverty line, including 21.3% of those under age 18 and 13.7% of those age 65 or over.

Tandy Darby - Member of the Tennessee House of Representatives, representing Tennessee's 76th House District

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• List of cities in Tennessee

• Media related to Greenfield, Tennessee at Wikimedia Commons