RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4219 locations in the last 30 days (4402 reports) · Last sighting yesterday

📰 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 — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/22/20252248 N MAPLEWOOD AVELogan Square1Completed1 dayPhone CallCity 311
1/8/20263331 W BELDEN AVELogan Square35Completed1 dayPhone CallCity 311
1/25/20262136 W CHARLESTON STLogan Square32Completed3 daysInternetCity 311
1/27/20261848 N HOYNE AVELogan Square32Completed1 dayInternetCity 311
8/20/20262537 W PALMER STLogan Square1Completed11 daysMobile DeviceCity 311
8/17/20262251 W FULLERTON AVELogan Square32Completed14 daysMobile DeviceCity 311
10/30/20252720 N CENTRAL PARK AVELogan Square35Completed1 dayInternetCity 311
5/27/20262738 N CENTRAL PARK AVELogan Square35Completed5 daysMobile DeviceCity 311
8/20/20262169 N MAPLEWOOD AVELogan Square1Completed11 daysMobile DeviceCity 311
6/4/20262544 W MEDILL AVELogan Square1Completed5 daysInternetCity 311
5/13/20262862 W LYNDALE STLogan Square1Completed2 daysMobile DeviceCity 311
9/3/20252048 W SHAKESPEARE AVELogan Square32Completed13 daysPhone CallCity 311
10/7/20253429 W MEDILL AVELogan Square35Completed9 daysPhone CallCity 311
10/4/20262036 W DICKENS AVELogan Square32Completed16 daysMobile DeviceCity 311
8/20/20262643 N WHIPPLE STLogan Square1Completed11 daysInternetCity 311
5/29/20262621 N EMMETT STLogan Square35Completed5 daysPhone CallCity 311
9/3/20251910 N CALIFORNIA AVELogan Square1Completed13 daysMobile DeviceCity 311
1/28/20262040 N SAWYER AVELogan Square26Completed1 dayInternetCity 311
5/27/20262216 N LAWNDALE AVELogan Square35Completed5 daysPhone CallCity 311
10/5/20262614 N SPAULDING AVELogan Square35Completed17 daysMobile DeviceCity 311
8/17/20262378 N ELSTON CTLogan Square32Completed14 daysInternetCity 311
5/28/20263734 W CORTLAND STLogan Square26Completed6 daysPhone CallCity 311
8/14/20262726 N ST LOUIS AVELogan Square35Completed18 daysMobile DeviceCity 311
10/3/20252937 W SCHUBERT AVELogan Square1Completed7 daysInternetCity 311
8/15/20263709 W ALTGELD STLogan Square35Completed16 daysMobile DeviceCity 311
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