McHenry Population

1880–2026

29,580

2026 projection

8% since 2020 (increase)

05K10K15K20K25K30K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for McHenry. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202629,580+3631.24%
202529,217+3811.32%
202428,836+5041.78%
202328,332+450.16%
202228,287+6402.31%
202127,647+2640.96%
202027,383+3641.35%
201927,019+350.13%
201826,984+1860.69%
201726,798+1770.66%

Showing 10 of 30 years.

McHenry Demographics

43.9median age

Median age

Female47.7 yrs
Male39.8 yrs

Adults

22,505
5,406 seniors · 24%17,099 other adults

Sex

Female 50.2% · 14,099Male 49.8% · 13,975

Population by age

MaleFemale85+ years, male: 16685+ years, female: 64480–84 years, male: 16480–84 years, female: 29575–79 years, male: 43975–79 years, female: 57370–74 years, male: 73970–74 years, female: 81365–69 years, male: 67265–69 years, female: 90160–64 years, male: 74760–64 years, female: 1,17355–59 years, male: 1,37255–59 years, female: 1,20250–54 years, male: 1,07850–54 years, female: 90945–49 years, male: 74645–49 years, female: 92140–44 years, male: 80640–44 years, female: 84635–39 years, male: 95435–39 years, female: 81530–34 years, male: 1,06230–34 years, female: 80525–29 years, male: 91525–29 years, female: 1,05120–24 years, male: 78820–24 years, female: 48315–19 years, male: 86215–19 years, female: 60910–14 years, male: 69310–14 years, female: 7945–9 years, male: 9565–9 years, female: 6860–4 years, male: 8160–4 years, female: 57985+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 281 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

McHenry Income

$86,315median household income

Median household income

$86,315

Half of households earn more, half earn less

Median earnings

$57,261

Typical yearly pay for a worker 25 or older.

Poverty rate

4.7%

About 1 in 21 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

McHenry Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%52%49%
Never married28%33%24%
Divorced15%13%17%
Widowed6%2%9%
Separated<1%<1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year