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.

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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
5/10/20261717 W WOLFRAM STLake View32Completed4 daysMobile DeviceCity 311
10/16/20251834 N WINCHESTER AVELogan Square32Completed5 daysInternetCity 311
6/17/20262824 N LINCOLN AVELake View32Completed5 daysMobile DeviceCity 311
5/10/20262205 W ROSCOE STNorth Center32Completed4 daysInternetCity 311
10/15/20263007 N OAKLEY AVENorth Center32Completed1 dayPhone CallCity 311
5/9/20261731 N WINCHESTER AVEWest Town32Completed5 daysPhone CallCity 311
5/8/20262222 W DIVERSEY PKWYLogan Square32Completed3 daysInternetCity 311
1/13/20262307 W ADDISON STNorth Center32Completed1 dayInternetCity 311
10/16/20251843 N PAULINA STLogan Square32Completed5 daysInternetCity 311
7/27/20251832 W MELROSE STNorth Center32Completed10 daysPhone CallCity 311
9/8/20251624 W NELSON STLake View32Completed14 daysInternetCity 311
6/25/20263224 N LEAVITT STNorth Center32Completed6 daysInternetCity 311
10/8/20262126 W MOFFAT STLogan Square32Completed1 dayPhone CallCity 311
5/9/20262220 N SEELEY AVELogan Square32Completed5 daysMobile DeviceCity 311
10/16/20252040 W ROSCOE STNorth Center32Completed5 daysPhone CallCity 311
7/10/20262307 W ADDISON STNorth Center32Completed12 daysInternetCity 311
7/13/20263057 N ASHLAND AVELake View32Completed9 daysMobile DeviceCity 311
5/9/20261907 W MELROSE STNorth Center32Completed5 daysInternetCity 311
8/6/20262448 N SOUTHPORT AVELincoln Park32Completed8 daysInternetCity 311
2/9/20261646 W CORTLAND STLogan Square32Completed1 dayInternetCity 311
1/9/20261870 N WILMOT AVELogan Square32Completed3 daysPhone CallCity 311
7/28/20251438 W ALTGELD STLincoln Park32Completed9 daysInternetCity 311
7/29/20262510 N WAYNE AVELincoln Park32Completed13 daysMobile DeviceCity 311
10/17/20262952 N HOYNE AVENorth Center32Completed11 daysMobile DeviceCity 311
5/12/20261734 W MELROSE STLake View32Completed2 daysMobile DeviceCity 311
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