Monroe, Washington

Monroe population, 2020 to 2024

Monroe lost 97 residents from July 2020 to July 2024, a change of -0.5%. In the latest year it moved by +343. Among 125 Washington places of 5,000 or more, that growth ranks 95th; the median place changed by +2.6%. The median place of 5,000+ in Washington has 18,148 people, so Monroe is 1.1 times that size.

Monroe covers 6.38 square miles of land and 0.06 of water, for 3,123 people per square mile of land. The median Washington place of 5,000+ has 2,694, so Monroe is denser than the typical town.

What county Monroe is in

All of Monroe's residents live in Snohomish County, which had 864,113 residents in 2024. Monroe holds 2.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Monroe

1 ZIP Code Tabulation Area (ZCTA) overlaps Monroe by at least 10% of the ZCTA's or the city's land: 98272. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Monroe is

The Census internal point of Monroe is at 47.859800, -121.984000. Olympia, the capital, is 71.2 miles SW in a straight line. The nearest larger place is Mill Creek, WA (20,993 people), 10.5 miles away. The nearest city of 100,000 or more is Everett, WA, 12.0 miles away.

Daylight in Monroe

At 47.86° N, Monroe gets about 16 h 02 min of daylight around the June solstice and 8 h 23 min around the December solstice, a swing of 7 h 38 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Monroe

The eight nearest incorporated places of 1,000+ in Washington, measured between internal points. The closest is Snohomish, 6.9 miles away, with 10,534 people.