RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4330 locations in the last 30 days (4489 reports) · Last sighting 2 days ago

📰 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/15/20231015 W 20TH PLLower West Side25Completed0 daysPhone CallCity 311
6/12/20263914 N OAKLEY AVENorth Center47Completed0 daysPhone CallCity 311
4/2/2026719 N SAWYER AVEHumboldt Park27Completed0 daysMobile DeviceCity 311
2/12/20262320 W ADAMS STNear West Side27Completed0 daysInternetCity 311
12/4/20252650 W 23RD STSouth Lawndale25Completed0 daysInternetCity 311
1/7/20266714 S ELIZABETH STWest Englewood17Completed0 daysPhone CallCity 311
12/29/202511133 S PEORIA STMorgan Park21Completed0 daysPhone CallCity 311
5/22/2026643 W BARRY AVELake View44Completed0 daysMobile DeviceCity 311
2/12/20265910 W NEWPORT AVEPortage Park30Completed0 daysPhone CallCity 311
2/26/20261633 N MAYFIELD AVEAustin29Completed0 daysPhone CallCity 311
12/9/20251617 S ST LOUIS AVENorth Lawndale24Completed0 daysMobile DeviceCity 311
11/20/20251141 W 31ST STBridgeport11Completed0 daysMobile DeviceCity 311
4/9/20262114 W 114TH PLMorgan Park19Completed0 daysPhone CallCity 311
2/16/20263220 N SHEFFIELD AVELake View44Completed0 daysMobile DeviceCity 311
5/12/20261943 S DRAKE AVENorth Lawndale24Completed0 daysMobile DeviceCity 311
5/19/20266733 S MAY STEnglewood16Completed0 daysPhone CallCity 311
5/12/20261945 S DRAKE AVENorth Lawndale24Completed0 daysMobile DeviceCity 311
4/1/20261628 N ROCKWELL STWest Town26Completed0 daysPhone CallCity 311
2/20/20264119 W HENDERSON STIrving Park30Completed0 daysMobile DeviceCity 311
11/3/20255808 W WARWICK AVEPortage Park38Completed0 daysMobile DeviceCity 311
7/1/20262413 N SPAULDING AVELogan Square35Completed0 daysPhone CallCity 311
1/7/20263704 N SAYRE AVEDunning38Completed0 daysPhone CallCity 311
12/9/20251758 W MONTROSE AVEUptown47Completed0 daysInternetCity 311
2/18/202616 S CENTRAL AVEAustin29Completed0 daysInternetCity 311
1/8/20262640 S PRINCETON AVEArmour Square11Completed0 daysPhone CallCity 311
Page 9 of 2,100
PreviousNext