RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4217 locations in the last 30 days (4373 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/29/20255908 W FOSTER AVEJefferson Park45Completed10 daysInternetCity 311
3/20/20265908 S ARCHER AVEGarfield Ridge23Completed3 daysPhone CallCity 311
3/6/20265907 W ADDISON STPortage Park30Completed3 daysMobile DeviceCity 311
4/7/20265907 W 64TH PLClearing13Completed2 daysPhone CallCity 311
9/10/20255907 S PRAIRIE AVEWashington Park20Completed6 daysPhone CallCity 311
5/27/20265907 N VIRGINIA AVEWest Ridge50Completed2 daysPhone CallCity 311
1/15/20265907 N MAGNOLIA AVEEdgewater48Completed1 dayInternetCity 311
7/30/20255907 N MAGNOLIA AVEEdgewater48Completed8 daysMobile DeviceCity 311
9/27/20265906 W GUNNISON STJefferson Park45Completed15 daysInternetCity 311
11/4/20255906 W DAKIN STPortage Park38Completed2 daysPhone CallCity 311
3/3/20265906 W DAKIN STPortage Park38Completed1 dayPhone CallCity 311
4/23/20265906 W DAKIN STPortage Park38Completed1 dayPhone CallCity 311
5/13/20265906 W DAKIN STPortage Park38Completed2 daysPhone CallCity 311
7/18/20265906 N MERRIMAC AVENorwood Park45Completed12 daysInternetCity 311
9/2/20255905 W WARWICK AVEPortage Park38Completed13 daysMobile DeviceCity 311
8/12/20265905 W NEWPORT AVEPortage Park30Completed13 daysAlderman's OfficeCity 311
9/22/20265905 W ADDISON STPortage Park30Completed14 daysMobile DeviceCity 311
8/12/20265905 W 64TH STClearing13Completed6 daysInternetCity 311
9/21/20265905 W 64TH STClearing13Completed14 daysInternetCity 311
1/21/20265905 W 64TH STClearing13Completed1 dayInternetCity 311
5/2/20265905 W 64TH STClearing13Completed2 daysInternetCity 311
9/27/20255905 W 64TH STClearing13Completed12 daysInternetCity 311
9/7/20255905 N MELVINA AVENorwood Park45Completed10 daysPhone CallCity 311
6/29/20265904 W NEWPORT AVEPortage Park30Completed7 daysPhone CallCity 311
8/8/20255904 W FOSTER AVEJefferson Park45Completed11 daysPhone CallCity 311
Page 499 of 2,256
PreviousNext