Zip Code 53561 — Merrimac, WI

ZIP Code 53561 is associated with Merrimac, WI, in Sauk County. The listed population estimate is 1,872; estimated density is 19.8 people per square mile. Among records with population estimates, it ranks #8 of 13 in Sauk County and #496 of 780 in WI.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.395940, -89.644140)

Data MetricLocal Statistic
Postal / Zip Code53561
Primary CityMerrimac
State / ProvinceWI
CountySauk
Total Population1,872
Population Density19.8 people/sq mi
TimezoneAmerica/Chicago

How 53561 Compares

MetricZIP 53561Sauk County recordsWI records
Population estimate1,87264,216 (sum)5,914,913 (sum)
Population Density19.8 /sq mi----
County population rank#8 of 13----
State population rank#496 of 780----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in WI

ZIP CodeCityDistancePopulation estimate
ZIP 53555Lodi6.8 mi8,933
ZIP 53913Baraboo7.9 mi21,704
ZIP 53578Prairie Du Sac8.7 mi6,503
ZIP 53951North Freedom11.2 mi2,452
ZIP 53955Poynette12.2 mi6,125

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →