RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4274 locations in the last 30 days (4465 reports) · Last sighting 21 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 — 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/2025834 W MONROE STNear West Side34Completed2 daysAlderman's OfficeCity 311
12/5/202515 S OAKLEY BLVDNear West Side27Completed3 daysMobile DeviceCity 311
8/10/2025142 N HERMITAGE AVENear West Side27Completed10 daysPhone CallCity 311
9/24/2025501 S CAMPBELL AVENear West Side28Completed14 daysInternetCity 311
9/2/20261210 W LEXINGTON STNear West Side34Completed6 daysInternetCity 311
9/21/2025700 W 16TH STNear West Side25Completed9 daysMobile DeviceCity 311
8/18/20251414 W TAYLOR STNear West Side28Completed8 daysPhone CallCity 311
12/17/20251019 W JACKSON BLVDNear West Side34Completed1 dayInternetCity 311
10/4/2025625 S LOOMIS STNear West Side34Completed2 daysInternetCity 311
12/4/2025729 S MAY STNear West Side34Completed4 daysPhone CallCity 311
8/15/2025846 S LOOMIS STNear West Side28Completed11 daysPhone CallCity 311
7/8/20262311 W WASHINGTON BLVDNear West Side27Completed9 daysPhone CallCity 311
12/21/20251111 W RANDOLPH STNear West Side27Completed1 dayPhone CallCity 311
11/28/20251300 S OAKLEY AVENear West Side28Completed3 daysMobile DeviceCity 311
8/21/20252448 W FLOURNOY STNear West Side28Completed6 daysInternetCity 311
7/11/20261148 W TAYLOR STNear West Side34Completed2 daysMobile DeviceCity 311
9/17/20252012 W RANDOLPH STNear West Side27Completed12 daysPhone CallCity 311
10/2/2025736 S LOOMIS STNear West Side34Completed0 daysPhone CallCity 311
8/8/20252143 W JACKSON BLVDNear West Side27Completed11 daysPhone CallCity 311
12/3/2025622 S OAKLEY AVENear West Side28Completed1 dayPhone CallCity 311
9/2/2025708F S RACINE AVENear West Side34Completed1 dayMobile DeviceCity 311
10/7/2025350 N CANAL STNear West Side34Completed2 daysAlderman's OfficeCity 311
9/2/20251068 W TAYLOR STNear West Side34Completed1 dayMobile DeviceCity 311
9/26/20252430 W WASHBURNE AVENear West Side28Completed6 daysAlderman's OfficeCity 311
8/19/20252351 W ADAMS STNear West Side27Completed10 daysPhone CallCity 311
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