RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4211 locations in the last 30 days (4395 reports) · Last sighting 17 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
9/23/2025450 E OAKWOOD BLVDGrand Boulevard3Completed9 daysPhone CallCity 311
8/12/20267000 W BERWYN AVENorwood Park41Completed9 daysMobile DeviceCity 311
6/29/20264700 S HERMITAGE AVENew City15Completed9 daysPhone CallCity 311
9/14/20266155 W 59TH STClearing13Completed9 daysInternetCity 311
9/7/20257220 S CONSTANCE AVESouth Shore7Completed9 daysInternetCity 311
6/29/20264600 S WOOD STNew City15Completed9 daysPhone CallCity 311
8/4/202610 N LEAVITT STNear West Side27Completed9 daysInternetCity 311
9/3/20255524 S HARPER AVEHyde Park5Completed9 daysInternetCity 311
9/1/20255646 S SACRAMENTO AVEGage Park14Completed9 daysMobile DeviceCity 311
9/14/20251627 W DIVISION STWest Town1Completed9 daysMobile DeviceCity 311
7/29/20252130 N KEDZIE AVELogan Square35Completed9 daysAlderman's OfficeCity 311
9/6/20251664 S BLUE ISLAND AVELower West Side25Completed9 daysMobile DeviceCity 311
9/2/20263301 N MONTICELLO AVEAvondale30Completed9 daysAlderman's OfficeCity 311
6/29/20264500 S HERMITAGE AVENew City15Completed9 daysPhone CallCity 311
9/24/20256540 W BELMONTDunning38Completed9 daysSalesforce Mobile AppCity 311
8/25/2026209 S CENTRAL PARK BLVDEast Garfield Park28Completed9 daysPhone CallCity 311
10/12/20251252 E 95TH PLPullman8Completed9 daysPhone CallCity 311
9/9/20256225 N LACROSSE AVEForest Glen39Completed9 daysMobile DeviceCity 311
8/26/20268541 S ADA STAuburn Gresham17Completed9 daysPhone CallCity 311
9/8/20251517 S TRUMBULL AVENorth Lawndale24Completed9 daysInternetCity 311
10/13/20256140 N LENOX AVEForest Glen39Completed9 daysInternetCity 311
6/29/20264400 S WOOD STNew City15Completed9 daysPhone CallCity 311
7/27/202610509 S LA SALLE STRoseland9Completed9 daysPhone CallCity 311
10/26/20267641 W ADDISON STDunning38Completed9 daysPhone CallCity 311
9/22/20252833 S WELLS STArmour Square11Completed9 daysPhone CallCity 311
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