Mechanicsville is a city in Cedar County, Iowa, United States. The population was 1,020 at the time of the 2020 census.

Mechanicsville was platted in 1855 by Daniel A. Comstock. It was so named from the fact several of its first settlers were mechanics. A fire in 1883 destroyed the south side of the business district.

Mechanicsville is located at 41°54′N 91°15′W / 41.900°N 91.250°W / 41.900; -91.250 (41.905, -91.253).

According to the United States Census Bureau, the city has a total area of 0.83 square miles (2.15 km), all land.

Historical populations

Year	Pop.	±%
1860	195	—
1870	628	+222.1%
1880	545	−13.2%
1890	612	+12.3%
1900	703	+14.9%
1910	817	+16.2%
1920	812	−0.6%
1930	781	−3.8%
1940	821	+5.1%
1950	850	+3.5%
1960	866	+1.9%
1970	989	+14.2%
1980	1,166	+17.9%
1990	1,075	−7.8%
2000	1,173	+9.1%
2010	1,146	−2.3%
2020	1,020	−11.0%
Source:"U.S. Census website". United States Census Bureau. Retrieved March 29, 2020. and Iowa Data Center Source: U.S. Decennial Census

As of the census of 2020, there were 1,020 people, 459 households, and 279 families residing in the city. The population density was 1,237.2 inhabitants per square mile (477.7/km). There were 488 housing units at an average density of 591.9 per square mile (228.5/km). The racial makeup of the city was 94.4% White, 0.8% Black or African American, 0.5% Native American, 0.4% Asian, 0.0% Pacific Islander, 0.7% from other races and 3.2% from two or more races. Hispanic or Latino persons of any race comprised 3.0% of the population.

Of the 459 households, 22.7% of which had children under the age of 18 living with them, 47.5% were married couples living together, 10.5% were cohabitating couples, 22.9% had a female householder with no spouse or partner present and 19.2% had a male householder with no spouse or partner present. 39.2% of all households were non-families. 31.8% of all households were made up of individuals, 15.3% had someone living alone who was 65 years old or older.

The median age in the city was 48.3 years. 20.6% of the residents were under the age of 20; 4.5% were between the ages of 20 and 24; 21.0% were from 25 and 44; 30.9% were from 45 and 64; and 23.0% were 65 years of age or older. The gender makeup of the city was 47.8% male and 52.2% female.

As of the census of 2010, there were 1,146 people, 471 households, and 315 families living in the city. The population density was 1,380.7 inhabitants per square mile (533.1/km). There were 496 housing units at an average density of 597.6 units per square mile (230.7 units/km). The racial makeup of the city was 97.8% White, 0.3% African American, 0.2% Native American, 0.3% Asian, 0.3% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.7% of the population.

There were 471 households, of which 28.7% had children under the age of 18 living with them, 52.4% were married couples living together, 8.9% had a female householder with no husband present, 5.5% had a male householder with no wife present, and 33.1% were non-families. 28.2% of all households were made up of individuals, and 14.3% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.83.

The median age in the city was 43.1 years. 22.9% of residents were under the age of 18; 6.9% were between the ages of 18 and 24; 22.7% were from 25 to 44; 29.2% were from 45 to 64; and 18.5% were 65 years of age or older. The gender makeup of the city was 47.8% male and 52.2% female.

As of the census of 2000, there were 1,173 people, 452 households, and 312 families living in the city. The population density was 1,582.5 inhabitants per square mile (611.0/km). There were 479 housing units at an average density of 646.2 units per square mile (249.5 units/km). The racial makeup of the city was 98.21% White, 0.09% African American, 0.51% Native American, 0.09% Asian, 0.09% from other races, and 1.02% from two or more races. Hispanic or Latino of any race were 1.36% of the population.

There were 452 households, out of which 33.8% had children under the age of 18 living with them, 54.6% were married couples living together, 9.5% had a female householder with no husband present, and 30.8% were non-families. 27.0% of all households were made up of individuals, and 14.8% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.97.

25.5% are under the age of 18, 7.9% from 18 to 24, 27.8% from 25 to 44, 19.0% from 45 to 64, and 19.8% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 90.1 males. For every 100 females age 18 and over, there were 84.4 males.

The median income for a household in the city was $36,053, and the median income for a family was $44,500. Males had a median income of $32,054 versus $23,125 for females. The per capita income for the city was $16,429. About 5.8% of families and 7.9% of the population were below the poverty line, including 11.4% of those under age 18 and 6.0% of those age 65 or over.

The North Cedar Community School District serves the community. It was established on July 1, 1995, by the merger of the Clarence-Lowden Community School District and the Lincoln Community School District.

• City website