Group

A group, also known as a probability group, is a value assigned to some items in the first-generation Animal Crossing games,, and that determines their rarity in a specific town. In the first-generation games and, furniture, tops, wallpapers, carpets, and stationery from Tom Nook's store or the Able Sisters are assigned a group of A, B, or C, and in each town, one of the groups is common, one is uncommon, and one is rare. In, furniture, wallpapers, carpets, and stationery from Timmy and Tommy's store are assigned a group of A, B, C, or D, and in each town, one of the groups is common, one is uncommon, one is rare, and one is very rare.

Which group is common, uncommon, rare, or very rare is assigned upon town creation, and it is different for each type of item. For example, Group A furniture may be common in a town, but Group A clothing may be rare in the same town.

Additionally, some sources only contain items of a specific rarity.

Percentages
Below is a table of the chances to obtain an item from a certain group, for sources that can give items from all groups. Having high item luck, through fêng shui or Katrina, increases the chances of uncommon and rare items appearing, evening out the odds.

In
The following sources in only contain items from a specific group:
 * The Lost & Found only contains items from the town's common group.
 * The clothing received by Gracie if the player fails to fully wash her car is always from the town's common group.
 * Balloons only contain items from the town's rare group.
 * The received on Sale Day only contains items from the town's rare group.

In
The following sources in only contain items from a specific group:
 * Balloons only contain items from the town's rare group.

In
The following sources in only contain items from a specific group:
 * Letters received from villagers has a chance to either contain items from the town's common group, uncommon and rare group, and very rare group.