RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4445 locations in the last 30 days (4610 reports) · Last sighting 13 hours ago

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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.

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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/23/20264914 S KOSTNER AVEArcher Heights14Completed4 daysInternetCity 311
7/23/20264912 S KOSTNER AVEArcher Heights14Completed4 daysInternetCity 311
7/23/20263039 W AINSLIE STAlbany Park33Completed14 daysPhone CallCity 311
7/23/20265610 S WOOD STWest Englewood15Completed5 daysPhone CallCity 311
7/23/20265616 S WOOD STWest Englewood15Completed0 daysPhone CallCity 311
7/23/20264454 W FULTON STWest Garfield Park28Completed12 daysPhone CallCity 311
7/23/2026136 N MASON AVEAustin29Completed8 daysPhone CallCity 311
7/23/2026328 S SACRAMENTO BLVDEast Garfield Park28Completed12 daysPhone CallCity 311
7/23/20262716 S CANAL STBridgeport11Completed6 daysInternetCity 311
7/23/20265612 S WOOD STWest Englewood15Completed0 daysPhone CallCity 311
7/23/20264226 S MICHIGAN AVEOakland4Completed7 daysPhone CallCity 311
7/23/20264706 N MALDEN STUptown46Completed6 daysInternetCity 311
7/23/20265250 N ROCKWELL STLincoln Square40Completed11 daysInternetCity 311
7/23/20262619 N WHIPPLE STLogan Square1Completed12 daysInternetCity 311
7/23/20262902 W WILCOX STEast Garfield Park27Completed8 daysInternetCity 311
7/23/20268053 S AVALON AVEAvalon Park8Completed11 daysInternetCity 311
7/23/20265161 W DEVON AVEForest Glen39Completed12 daysInternetCity 311
7/23/2026143 W 103RD PLRoseland9Completed13 daysMobile DeviceCity 311
7/23/20262818 S PRINCETON AVEArmour Square11Completed1 dayInternetCity 311
7/23/20263034 S LOWE AVEBridgeport11Completed6 daysInternetCity 311
7/23/2026648 W 31ST STBridgeport11Completed6 daysInternetCity 311
7/23/20261528 W 18TH STLower West Side25Completed5 daysPhone CallCity 311
7/23/20265400 N NAGLE AVENorwood Park41Completed11 daysPhone CallCity 311
7/22/20265654 N MENARD AVEJefferson Park45Completed14 daysInternetCity 311
7/22/20265025 N SAWYER AVEAlbany Park33Completed11 daysInternetCity 311
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