RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4410 locations in the last 30 days (4571 reports) · Last sighting yesterday

📰 Blog
DayWeek30 DaysYear
Loading map…

What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/16/20259518 S PRAIRIE AVERoseland9Completed11 daysInternetCity 311
8/27/20259436 S VERNON AVERoseland8Completed6 daysPhone CallCity 311
8/27/20259432 S VERNON AVERoseland8Completed6 daysInternetCity 311
8/27/20259436 S VERNON AVERoseland8Completed6 daysPhone CallCity 311
8/6/202510114 S INDIANA AVERoseland9Completed9 daysMobile DeviceCity 311
12/9/20259908 S WENTWORTH AVERoseland9Completed1 dayPhone CallCity 311
9/9/2026301 E 113TH STRoseland9Completed12 daysAlderman's OfficeCity 311
9/9/2026307 E 113TH STRoseland9Completed12 daysPhone CallCity 311
7/6/20269607 S LASALLE STRoseland9Completed2 daysInternetCity 311
7/2/202610621 S CALUMET AVERoseland9Completed6 daysMobile DeviceCity 311
8/7/202511154 S VERNON AVERoseland9Completed13 daysInternetCity 311
8/21/202510621 S CALUMET AVERoseland9Completed8 daysInternetCity 311
9/30/20259618 S WENTWORTH AVERoseland9Completed7 daysPhone CallCity 311
12/10/20259439 S VERNON AVERoseland8Completed1 dayPhone CallCity 311
8/14/2025561 E 105TH PLRoseland9Completed20 daysPhone CallCity 311
12/10/20259108 S STEWART AVERoseland9Completed1 dayInternetCity 311
8/6/202511336 S INDIANA AVERoseland9Completed14 daysAlderman's OfficeCity 311
12/10/20259908 S WENTWORTH AVERoseland9Completed1 dayPhone CallCity 311
12/10/2025207 W 99TH STRoseland9Completed1 dayPhone CallCity 311
12/10/202510228 S ST LAWRENCE AVERoseland9Completed1 dayAlderman's OfficeCity 311
12/11/202510836 S UNION AVERoseland21Completed1 dayInternetCity 311
8/24/202510817 S EBERHART AVERoseland9Completed10 daysPhone CallCity 311
8/19/2025432 W 110TH PLRoseland21Completed10 daysPhone CallCity 311
9/8/202651 E 98TH STRoseland9Completed13 daysPhone CallCity 311
10/20/20269541 S LA SALLE STRoseland9Open—Phone CallCity 311
Page 636 of 2,291
PreviousNext