RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4174 locations in the last 30 days (4356 reports) · Last sighting 18 hours 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.

📰 This week’s rat recap

Weekly Rat Trends — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 days on average to resolve a complaint
Read the full recap →

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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20258937 S OGLESBY AVECalumet Heights7Completed3 daysPhone CallCity 311
10/7/20252414 E 89TH STCalumet Heights7Completed3 daysPhone CallCity 311
8/12/20252552 E 93RD STCalumet Heights7Completed10 daysInternetCity 311
8/25/20259356 S CRANDON AVECalumet Heights7Completed8 daysMobile DeviceCity 311
9/13/20269332 S ESCANABA AVECalumet Heights7Completed12 daysMobile DeviceCity 311
8/14/20259020 S HARPER AVECalumet Heights8Completed8 daysPhone CallCity 311
9/16/20259332 S ESCANABA AVECalumet Heights7Completed13 daysMobile DeviceCity 311
7/3/20269321 S CONSTANCE AVECalumet Heights8Completed5 daysPhone CallCity 311
12/22/20252660 E 92ND STCalumet Heights7Completed1 dayInternetCity 311
10/5/20252660 E 95TH STCalumet Heights7Completed5 daysInternetCity 311
10/29/20268818 S CORNELL AVECalumet Heights8Completed12 daysInternetCity 311
10/3/20258945 S BLACKSTONE AVECalumet Heights8Completed7 daysAlderman's OfficeCity 311
8/29/20259223 S KINGSTON AVECalumet Heights7Completed14 daysPhone CallCity 311
6/29/20269312 S ANTHONY AVECalumet Heights10Completed9 daysPhone CallCity 311
10/22/20269240 S KINGSTON AVECalumet Heights7Completed13 daysPhone CallCity 311
8/19/20258852 S YATES AVECalumet Heights8Completed7 daysAlderman's OfficeCity 311
9/27/20259121 S EAST END AVECalumet Heights8Completed6 daysInternetCity 311
11/2/20269027 S COLFAX AVECalumet Heights7Open—Mobile DeviceCity 311
12/26/20259240 S KINGSTON AVECalumet Heights7Completed3 daysMobile DeviceCity 311
8/18/20251361 E 90TH STCalumet Heights8Completed8 daysAlderman's OfficeCity 311
9/21/20259035 S CORNELL AVECalumet Heights8Completed8 daysPhone CallCity 311
10/24/20269004 S CHAPPEL AVECalumet Heights8Completed6 daysInternetCity 311
7/8/20262043 E 93RD STCalumet Heights7Completed0 daysAlderman's OfficeCity 311
9/7/20269132 S CRANDON AVECalumet Heights7Completed2 daysInternetCity 311
8/19/20251641 E 92ND STCalumet Heights8Completed7 daysPhone CallCity 311
Page 1720 of 2,400
PreviousNext