This is an optional document that players can use if they choose. This is in addition to the regular background and helps me better pin a character to the world.

Pick a region allowed for your race. You gain proficiency in the item listed under common proficiency and one of the other listed proficiencies of your choice. If you already have proficiency in the common item from your race or background, you gain proficiency in the item listed after the slash instead. If multiple are listed for a category, choose one. Races are listed in order of prevalence in the region. Sub-race notations in parentheses refer to the ones listed in Player Option--Variant Races.

Baile Duchas: Northern Remnant Dynasty

Races: Orc (any except half-blood), dragonborn (Gal, Syra)
Common Proficiency: Ard-teang (Orc) / Draconic
Tools: Leatherworker / Carpenter / Woodcarver
Skills: Intimidation / Athletics
Languages: Draconic
Weapons: Greataxe / maul

Byarmarsh: Southern Remnant Dynasty

Races: Dragonborn (Byarsh, Syra, Khor), hobgoblin (any), Orc (bear paw, hammer stroke), soulforged (steel-skin)
Common Proficiency: Ngyon Toi (Goblin) / Tinkerer’s Tools
Tools: Tinkerer / Smith / Alchemist
Skills: Arcana / Investigation
Languages: Draconic
Weapons: light crossbow / heavy crossbow / hand crossbow

Byssia

Races: Human (night’s child), wood elf, half-elf (twilight), genasi (any), soul-forged (bark-skin)
Common Proficiency: Metsae (Wood elf) / Woodcarver’s tools
Tools: Leatherworker's / Carpenter / Woodcarver / Mason
Skills: Nature / Arcana
Languages: Elemental
Weapons: short sword / longbow

Central District: Central Stone Throne

Races: Human (scale-kin), half-elf (scaled), yuan-ti pureblood, tiefling (leutis-born)
Common Proficiency: Arcana / Alchemist’s Kit
Tools: Alchemist / Glassblower / Poisoner's Kit
Skills: Religion
Languages: Iath Neidr
Weapons: scimitar

Dreamshore: Northern Council

Races: Human (wall-builder), wood elf, halfling, orc (half-blood), half-elf (traveller or earth-kin), aasimar, tiefling (chou- or leutis-born)
Common Proficiency: Metsae (Wood elf) / Ard-teang (Orc)
Tools: Carpenter / Woodcarver / Leatherworker
Skills: Nature / Survival
Languages: Ard-teang (Orc)
Weapons: Shortbow

Godsfall: Unaligned

Races: Orc (hell-bred), Changer (Feline)
Common Proficiency: Old Imperial / Religion
Tools: Masons / Woodcarver
Skills: History / Persuasion
Languages: --
Weapons: Battleaxe / Spear 

Kairen Mountains: Western Remnant Dynasty

Races: Dragonborn (Gal, Anu), Orc (bear paw)
Common Proficiency: Draconic / Survival
Tools: Mason / Smith
Skills: Survival
Weapons: any martial melee weapon

Moon's Vengeance Foothills: Eastern Council

Races: Dwarf, Human (wall-builder), halfling
Common Proficiency: Bidni-Khel (dwarf) / Mason’s Tools
Tools: Jeweler / Smith / Tinker / Mason
Skills: History / Survival
Languages: Too-til (Giant)
Weapons: War pick

Northern District: Northern Stone Throne

Races: Human (scale-kin),yuan-ti pureblood, half-elf (scaled)
Common Proficiency: Nature / Herbalist’s Kit
Tools: Weaver / Woodcarver / Poisoner's Kit
Skills: Medicine
Languages: Iath Neidr
Weapons: Blowgun and trident

Safehold: Central-Eastern Remnant Dynasty

Races: Orc (Bear Paw, Hammer Stroke), Dragonborn (Syra, Gal, Khor), wood elf
Common Proficiency: Draconic / Vehicles, land
Tools: Brewer / Potter / Cobbler / Cook / Tinker
Skills: Animal Handling / Performance
Languages: Ngyon Toi (Goblin) / Ard-Teang (Orc) / Metsae (Wood Elf)
Weapons: Pike / flail

Sea of Grass: Central Council

Races: Human (wall-builder), halfling, high elf, aasimar, tiefling (any)
Common Proficiency: Religion / Vehicles, land
Tools: Cobbler / Brewer / Weaver
Skills: Animal Handling / Religion
Languages: Old Imperial / Yonwach (High Elf)
Weapons: Whip

Southern District: Southern Stone Throne

Races: Human (scale-kin), half-elf (scaled), yuan-ti pureblood, tiefling (mara-born)
Common Proficiency: History / Vehicles, water
Tools: Smith / Mason / Vehicles, water
Skills: Deception
Languages: Iath Neidr
Weapons: trident and net

Southshore: Western Council

Races: Human (any), high elf, halfling, dwarf, wood elf, dragonborn (any), hobgoblin, half-elf (any), tiefling (chou-born), aasimar
Common Proficiency: Yonwach (High elf) / Vehicles, water
Tools: Glassblower / Cartographer / Potter
Skills: Insight
Languages: Nguyen Toi (Goblin)
Weapons: Spear

Cultural Matrix

Bolded regions are where they’re most common.