RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4556 locations in the last 30 days (4725 reports) · Last sighting 15 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.

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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.

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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/29/2025948 N NOBLE STWest Town1Completed10 daysInternetCity 311
9/17/2026948 N NOBLE STWest Town1Open—InternetCity 311
6/21/2026948 N DAMEN AVEWest Town36Completed3 daysInternetCity 311
9/10/2026948 N DAMEN AVEWest Town36Completed12 daysMobile DeviceCity 311
6/30/2026948 E 83RD STChatham8Completed8 daysPhone CallCity 311
8/10/2026947 W 87TH STAuburn Gresham21Completed10 daysPhone CallCity 311
9/20/2026947 W 31ST PLBridgeport11Open—InternetCity 311
7/20/2026947 N HONORE STWest Town36Completed9 daysInternetCity 311
2/12/2026946 W MONTANA STLincoln Park43Completed1 dayInternetCity 311
4/25/2026946 W CULLERTON STLower West Side25Completed2 daysPhone CallCity 311
10/12/2025946 W CONCORD PLLincoln Park2Completed8 daysMobile DeviceCity 311
9/12/2026946 W 32ND STBridgeport11Completed11 daysInternetCity 311
3/23/2026946 W 31ST PLBridgeport11Completed0 daysMobile DeviceCity 311
8/12/2026946 W 31ST PLBridgeport11Completed13 daysMobile DeviceCity 311
7/8/2026946 W 18TH PLLower West Side25Completed5 daysMobile DeviceCity 311
9/9/2025946 N WELLS STNear North Side27Completed10 daysMobile DeviceCity 311
3/21/2026946 N RACINE AVEWest Town27Completed2 daysInternetCity 311
6/8/2026946 N CALIFORNIA AVEWest Town26Completed4 daysInternetCity 311
7/24/2026945 W AGATITE AVEUptown46Completed10 daysInternetCity 311
3/15/2026945 W 54TH PLNew City16Completed1 dayInternetCity 311
4/1/2026945 N WESTERN AVEWest Town36Completed0 daysMobile DeviceCity 311
8/4/2026945 N WALLER AVEAustin29Completed6 daysMobile DeviceCity 311
9/3/2025945 N DAMEN AVEWest Town36Completed13 daysMobile DeviceCity 311
8/3/20269457 S JUSTINE STWashington Heights21Completed11 daysMobile DeviceCity 311
4/6/2026944 W MONTROSE AVEUptown46Completed1 dayMobile DeviceCity 311
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