RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4485 locations in the last 30 days (4633 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/19/20265732 W GUNNISON STJefferson Park45Completed8 daysMobile DeviceCity 311
7/27/20255850 N MULLIGAN AVENorwood Park45Completed8 daysInternetCity 311
8/7/20256544 N SPOKANE AVEForest Glen45Completed13 daysPhone CallCity 311
3/29/20264632 N LAWLER AVEPortage Park45Completed0 daysMobile DeviceCity 311
7/18/20265011 N CENTRAL AVEJefferson Park45Completed12 daysMobile DeviceCity 311
3/29/20264917 N MILWAUKEE AVEJefferson Park45Completed1 dayInternetCity 311
9/28/20264861 N MERRIMAC AVEJefferson Park45Open—InternetCity 311
8/28/20265249 W CARMEN AVEJefferson Park45Completed17 daysInternetCity 311
3/29/20265474 N MONITOR AVEJefferson Park45Completed1 dayMobile DeviceCity 311
8/7/20256544 N SPOKANE AVEForest Glen45Completed13 daysPhone CallCity 311
8/27/20265154 N LOTUS AVEJefferson Park45Completed1 dayPhone CallCity 311
4/30/20265530 W EDMUNDS STJefferson Park45Completed4 daysPhone CallCity 311
9/14/20266139 W ROSEDALE AVENorwood Park45Completed14 daysPhone CallCity 311
2/23/20265752 W AINSLIE STJefferson Park45Completed1 dayInternetCity 311
8/27/20264901 W MONTROSE AVEPortage Park45Completed1 dayPhone CallCity 311
10/22/20255319 W WINONA STJefferson Park45Completed8 daysAlderman's OfficeCity 311
8/13/20264034 N LOWELL AVEIrving Park45Completed14 daysInternetCity 311
3/31/20265106 W STRONG STJefferson Park45Completed2 daysPhone CallCity 311
8/27/20265319 W WINONA STJefferson Park45Completed1 dayPhone CallCity 311
8/23/20265535 N LUNA AVEJefferson Park45Completed10 daysMobile DeviceCity 311
6/18/20265057 N MELVINA AVEJefferson Park45Completed5 daysInternetCity 311
10/2/20255210 N LECLAIRE AVEJefferson Park45Completed8 daysInternetCity 311
6/19/20264755 N LINDER AVEPortage Park45Completed4 daysPhone CallCity 311
7/24/20265534 W LAWRENCE AVEJefferson Park45Completed13 daysPhone CallCity 311
7/12/20265732 N MERRIMAC AVENorwood Park45Completed10 daysInternetCity 311
Page 248 of 2,174
PreviousNext