Merrimac, WI Demographics

A map of Merrimac's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	439	488	77.0%	92.6%
Hispanic	75	19	13.2%	3.6%
Black	36	1	6.3%	0.2%
Multiracial	14	15	2.5%	2.8%
Asian	3	1	0.5%	0.2%
Native American/Other	3	3	0.5%	0.6%

Merrimac, Wisconsin has an estimated population of 570, an increase from the 527 recorded in the 2020 Census. The population is 77.0% White, 13.2% Hispanic, 6.3% Black, 2.5% Multiracial, 0.5% Asian, and 0.5% Native American/Other. This demographic dot map shows the population of Merrimac, with one dot drawn for each person counted by the Census, color-coded by race.

Merrimac has become considerably more racially diverse since the 2020 Census. It is more diverse than Wisconsin overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Merrimac, that probability was 14.0% in 2020 and 38.5% in the most recent ACS estimates.

Merrimac is ranked the 506th most populous place in Wisconsin, out of 808 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Merrimac was ranked the 524th most populous place in the 2020 Census.

Merrimac's White Population

439 residents of Merrimac, or 77.0% of the population, identify as White. The share of White residents in Merrimac is comparable to the share in Wisconsin overall, where 78.6% of the population is White. Merrimac ranks 282nd statewide in terms of White residents as a share of the population, out of 808 places.

Since the 2020 Census, Merrimac's White population has declined by an estimated 10.0%. White residents' share of Merrimac's population has decreased from 92.6% to 77.0%.

Merrimac is less White than neighboring Lake Wisconsin (93.7% White), Lodi (98.3% White), Prairie du Sac (89.8% White), Sauk City (86.2% White), and Baraboo (87.7% White).

Merrimac's Black Population

36 residents of Merrimac, or 6.3% of the population, identify as Black. The share of Black residents in Merrimac is comparable to the share in Wisconsin overall, where 5.9% of the population is Black. Merrimac ranks 541st statewide in terms of Black residents as a share of the population, out of 808 places.

Since the 2020 Census, Merrimac's Black population has grown by an estimated 3500.0%. Black residents' share of Merrimac's population has increased from 0.2% to 6.3%.

Merrimac is more Black than neighboring Lake Wisconsin (0.4% Black), Lodi (0.3% Black), Prairie du Sac (1.6% Black), Sauk City (0.5% Black), and Baraboo (0.7% Black).

Merrimac's Asian Population

3 residents of Merrimac, or 0.5% of the population, identify as Asian. The share of Asian residents in Merrimac is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Merrimac ranks 541st statewide in terms of Asian residents as a share of the population, out of 808 places.

Since the 2020 Census, Merrimac's Asian population has grown by an estimated 200.0%. Asian residents' share of Merrimac's population has remained roughly unchanged at 0.5%.

Merrimac is more Asian than neighboring Lodi (0% Asian), and Prairie du Sac (0% Asian). Merrimac is less Asian than neighboring Lake Wisconsin (1.3% Asian), Sauk City (2.4% Asian), and Baraboo (0.6% Asian).

Merrimac's Hispanic Population

75 residents of Merrimac, or 13.2% of the population, identify as Hispanic. The share of Hispanic residents in Merrimac is higher than in Wisconsin overall, where 8% of the population is Hispanic. Merrimac ranks 330th statewide in terms of Hispanic residents as a share of the population, out of 808 places.

Since the 2020 Census, Merrimac's Hispanic population has grown by an estimated 294.7%. Hispanic residents' share of Merrimac's population has increased from 3.6% to 13.2%.

Merrimac is more Hispanic than neighboring Lake Wisconsin (2.1% Hispanic), Lodi (0.7% Hispanic), Prairie du Sac (4.5% Hispanic), Sauk City (6.4% Hispanic), and Baraboo (3.5% Hispanic).

Merrimac's Native American/Other Population

3 residents of Merrimac, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Merrimac is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Merrimac ranks 422nd statewide in terms of Native American/Other residents as a share of the population, out of 808 places.

Since the 2020 Census, Merrimac's Native American/Other population has remained roughly the same. Native American/Other residents' share of Merrimac's population has remained roughly unchanged at 0.5%.

Merrimac is more Native American/Other than neighboring Lake Wisconsin (0.3% Native American/Other), Lodi (0.1% Native American/Other), and Prairie du Sac (0% Native American/Other). Merrimac is less Native American/Other than neighboring Sauk City (0.9% Native American/Other), and Baraboo (1.1% Native American/Other).

Merrimac's Multiracial Population

14 residents of Merrimac, or 2.5% of the population, identify as Multiracial. The share of Multiracial residents in Merrimac is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Merrimac ranks 480th statewide in terms of Multiracial residents as a share of the population, out of 808 places.

Since the 2020 Census, Merrimac's Multiracial population has declined by an estimated 6.7%. Multiracial residents' share of Merrimac's population has remained roughly unchanged at 2.5%.

Merrimac is more Multiracial than neighboring Lake Wisconsin (2.3% Multiracial), and Lodi (0.6% Multiracial). Merrimac is less Multiracial than neighboring Prairie du Sac (4.1% Multiracial), Sauk City (3.6% Multiracial), and Baraboo (6.5% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.