Kirby is an unincorporated census-designated place in northern Pike County, Arkansas, United States. The community lies on U.S. Route 70; it is located halfway between Daisy and Glenwood. Per the 2020 census, the population was 721.

Public education for elementary and secondary school students is provided by the Kirby School District, which includes:

• Kirby Elementary School, serving kindergarten through grade 6.
• Kirby High School, serving grades 7 through 12.

The schools' mascot and athletic teams are the Trojans with maroon and gray as the school colors.

Historical population

Census	Pop.	Note	%±
2010	786		—
2020	721		−8.3%
U.S. Decennial Census 2010 2020

Kirby CDP, Georgia – Demographic Profile
(NH = Non-Hispanic)
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.

Race / Ethnicity	Pop 2010	Pop 2020	% 2010	% 2020
White alone (NH)	761	645	96.82%	89.46%
Black or African American alone (NH)	1	0	0.13%	0.00%
Native American or Alaska Native alone (NH)	0	1	0.00%	0.14%
Asian alone (NH)	0	0	0.00%	0.00%
Pacific Islander alone (NH)	0	0	0.00%	0.00%
Some Other Race alone (NH)	0	2	0.00%	0.28%
Mixed Race/Multi-Racial (NH)	18	45	2.29%	6.24%
Hispanic or Latino (any race)	6	28	0.76%	3.88%
Total	786	721	100.00%	100.00%

34°15′01″N 93°38′29″W / 34.25028°N 93.64139°W / 34.25028; -93.64139