RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3982 locations in the last 30 days (4160 reports) · Last sighting 20 hours ago

📰 Blog
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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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/13/20256138 N SPRINGFIELD AVENorth Park39Completed1 dayInternetCity 311
4/19/2026329 W 25TH PLArmour Square11Completed1 dayPhone CallCity 311
11/20/20254042 W ARMITAGE AVEHermosa26Completed1 dayInternetCity 311
4/9/20267305 S CRANDON AVESouth Shore7Completed1 dayMobile DeviceCity 311
1/21/20266820 S PERRY AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
3/23/20265109 W BYRON STPortage Park30Completed1 dayPhone CallCity 311
2/25/20263859 W WRIGHTWOOD AVELogan Square35Completed1 dayAlderman's OfficeCity 311
4/22/20265271 N NORTHWEST HWYJefferson Park45Completed1 dayAlderman's OfficeCity 311
12/28/20252646 W SUMMERDALE AVELincoln Square40Completed1 dayInternetCity 311
2/23/20265825 S NORMANDY AVEGarfield Ridge13Completed1 dayInternetCity 311
5/17/20261319 N MOHAWK STNear North Side2Completed1 dayMobile DeviceCity 311
3/10/20261107 W 71ST STEnglewood17Completed1 dayInternetCity 311
11/4/20253226 S KEDVALE AVESouth Lawndale22Completed1 dayPhone CallCity 311
11/19/20252730 W GREGORY STLincoln Square40Completed1 dayInternetCity 311
11/19/20252720 W GREGORY STLincoln Square40Completed1 dayInternetCity 311
1/12/2026908 N ASHLAND AVEWest Town1Completed1 dayInternetCity 311
6/2/20265834 W GUNNISON STJefferson Park45Completed1 dayPhone CallCity 311
8/14/20252023 W MCLEAN AVELogan Square32Completed1 dayPhone CallCity 311
11/18/20251822 W WARNER AVENorth Center47Completed1 dayPhone CallCity 311
10/5/20263250 N DAMEN AVENorth Center32Completed1 dayPhone CallCity 311
1/27/20265612 S NAGLE AVEGarfield Ridge13Completed1 dayInternetCity 311
2/17/20265531 W VAN BUREN STAustin29Completed1 dayInternetCity 311
3/19/20261054 W OAKDALE AVELake View44Completed1 dayPhone CallCity 311
10/30/20252937 W WILCOX STEast Garfield Park27Completed1 dayPhone CallCity 311
9/29/20256831 S ADA STWest Englewood17Completed1 dayPhone CallCity 311
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