Elmira is a census-designated place (CDP) in Solano County, California, United States.

[4][5] In the 19th and early 20th century, Elmira was the major railroad stop between Fairfield and Davis.

According to the United States Census Bureau, the CDP has a total area of 0.531 square miles (1.38 km2), all of it land.

[8] The 2010 United States Census reported that Elmira had a population of 188.

[11] There were 91 housing units at an average density of 171.3 per square mile (66.1/km2), of which 45 (52.9%) were owner-occupied, and 40 (47.1%) were occupied by renters.

There were 92 housing units at an average density of 169.8 per square mile (65.6/km2).

[12] The median household income was $48,438, based on a sample of the population.