RatCity — Chicago Rat and Rodent Sightings Map

RatCity

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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/10/20262940 N SEELEY AVENorth Center32Completed3 daysInternetCity 311
2/17/20262600 S HARDING AVESouth Lawndale22Completed3 daysAlderman's OfficeCity 311
1/23/20261700 W 47TH STNew City15Completed3 daysPhone CallCity 311
5/15/20261149 N LOCKWOOD AVEAustin37Completed3 daysPhone CallCity 311
10/31/202510700 S ST LOUIS AVEMount Greenwood19Completed3 daysPhone CallCity 311
11/10/20254110 W WELLINGTON AVEAvondale31Completed3 daysPhone CallCity 311
3/9/20261727 N MONITORAustin29Completed3 daysSalesforce Mobile AppCity 311
1/9/20265231 S MEADE AVEGarfield Ridge23Completed3 daysPhone CallCity 311
4/24/20266211 S RUTHERFORD AVEClearing13Completed3 daysInternetCity 311
2/20/20261724 N OAK PARK AVEAustin29Completed3 daysPhone CallCity 311
8/15/20262814 W 21ST STSouth Lawndale25Completed3 daysInternetCity 311
2/13/20266709 W 64TH PLClearing13Completed3 daysInternetCity 311
5/12/20267250 S MOZART STChicago Lawn18Completed3 daysAlderman's OfficeCity 311
3/28/20262031 W CORTLAND STLogan Square32Completed3 daysMobile DeviceCity 311
3/21/2026420 W DEMING PLLincoln Park43Completed3 daysMobile DeviceCity 311
6/5/20266500 S HERMITAGE AVEWest Englewood15Completed3 daysAlderman's OfficeCity 311
5/11/20261547 W SCHOOL STLake View32Completed3 daysInternetCity 311
1/2/20263140 N ELSTON AVEAvondale35Completed3 daysInternetCity 311
4/17/20264251 N MOZART STIrving Park33Completed3 daysInternetCity 311
5/15/20262621 S STEWART AVEArmour Square11Completed3 daysInternetCity 311
6/5/20263331 N NEVA AVEDunning38Completed3 daysPhone CallCity 311
11/21/20254047 N MOODY AVEPortage Park38Completed3 daysPhone CallCity 311
4/3/20263616 W 115TH PLMount Greenwood19Completed3 daysMobile DeviceCity 311
7/4/20261818 S MORGAN STLower West Side25Completed3 daysInternetCity 311
3/27/20265649 S NASHVILLE AVEGarfield Ridge13Completed3 daysMobile DeviceCity 311
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