Civilization VI District Placement Guide: Adjacency Bonuses Explained

Every district in Civilization VI sits on a real map tile, and the six tiles around it decide most of what that district is worth. A Campus pushed up against four mountains pays +4 science a turn before it has a single building in it. The same Campus dropped on open grassland pays nothing, forever. That's adjacency, and it's the gap between a city that carries your empire and one that's just taking up map space.

None of it is hidden, either. The second you pick a district to build, the game stamps a +X on every legal tile, so you always see the payout before you commit. It plays less like a gamble and more like a puzzle where the pieces cost production and never move again.

How Adjacency Bonuses Are Calculated

Only the six tiles directly touching the district count. Civ VI runs on hexes, so that's the whole universe - ring one. Mountains two tiles back don't exist as far as your Campus is concerned. Neither does the river on the far side of town, or the rainforest blob off to the southeast.

Those six neighbors pay out in three tiers. A major bonus is +2, a standard bonus is +1, and a minor bonus is half a point. Then there's the wrinkle that trips everyone: some bonuses are per tile and some are per two tiles.

Here's what each district wants, using the current Gathering Storm numbers:

| District | Yield | What the six neighbors give | | --- | --- | --- | | Campus | Science | +1 per mountain, +1 per 2 rainforests, +1 per 2 districts, +2 per reef / geothermal fissure / Pamukkale tile | | Commercial Hub | Gold | +2 for touching a river, +2 per adjacent Harbor, +1 per 2 districts | | Harbor | Gold | +2 next to the City Center, +1 per sea resource, +1 per 2 districts | | Holy Site | Faith | +2 per natural wonder tile, +1 per mountain, +1 per 2 unimproved woods, +1 per 2 districts | | Theater Square | Culture | +2 per wonder, +2 per Entertainment Complex or Water Park, +1 per 2 districts | | Industrial Zone | Production | +2 per Aqueduct / Canal / Dam, +1 per quarry, +1 per strategic resource, +1 per 2 mines |

The Government Plaza is the odd one out. It hands a flat +1 to every adjacent district that produces a yield, on top of the normal +0.5, so a district touching it collects +1.5 from that single tile.

The rounding rule

Halves round down, and they round down at the end. One district neighbor sitting alone is +0.5, which the game treats as zero. Two district neighbors is +1. So a lone half point is a dead bonus until something else shows up next to it - which is quietly an argument for clustering, since the second district completes the pair for both of them at once.

The river trap

The Commercial Hub says "+2 Gold from each adjacent river tile," and that wording has confused people since 2016. It isn't per river tile. Touch a river from one side and you get a flat +2, whether one river edge touches your district or five. Rivers in Civ VI sit on tile edges, and the game just checks "is this next to a river" as a yes or no.

Adjacency is live, not locked

The bonus updates whenever the map changes. Build a new district next door and the old one picks up +0.5. Chop the rainforest beside your Campus for a one-time production burst and the Campus permanently loses the science it was earning from it. That's the real cost of chopping around a finished district - you're trading a permanent yield for a one-off payment.

Placement restrictions

Districts can't go on luxury resources, or on strategic resources that have already been revealed on the map. Bonus resources like wheat or cattle are blocked too until you have the tech that lets you harvest them. So that perfect pocket tile with the Iron on it is off the menu once the Iron is visible. There's a known trick of placing a district over a strategic resource before it's revealed - the district then counts as working it, which is a nice freebie when it happens.

The multipliers

Three economic policy cards double adjacency bonuses: Natural Philosophy for Campuses, Scripture for Holy Sites, and Craftsmen for Industrial Zones. The doubling applies to the adjacency only, never the buildings inside. A +4 Campus becomes +8 with Natural Philosophy slotted, and since policy swaps are free, most players just run the card full-time once their adjacency is real.

Quick worked example so the math is visible. A Holy Site touching two mountains, two woods tiles, and the City Center: +2 from the mountains, +1 from the woods pair, +0.5 from the City Center. That displays as +3 faith, turn after turn, from placement alone.

Campus Placement for Maximum Science

The Campus is the easiest district to place well, because its best friend is the one terrain nobody wants for anything else: mountains. Every adjacent mountain is +1 science, full stop. Three mountains around a tile is +3, four is +4, and a fully walled-in hex hits +6. Mountains can't be chopped, can't be built on, and can't be improved, so that bonus never goes anywhere.

That's why the standard advice is to settle your science city right against the outside edge of a mountain range rather than in the middle of a pretty valley. You want the range hugging your borders, with a buildable flat tile touching three or four of the peaks.

Rainforest starts and the chop problem

Rainforest pays +1 science per two adjacent tiles, which sounds decent until you think two eras ahead. Rainforest tiles are also the game's best early production chops - clearing one dumps a chunk of production into whatever the city is building. So the jungle Campus and the jungle chop are fighting over the same ground. Nine times out of ten you're better off chopping the rainforest for settlers and districts early and putting the Campus somewhere boring, than keeping a +2 jungle bonus alive for the rest of the run. Mountain adjacency never asks you to make that trade.

The coastal jackpot

Water isn't dead for science either. The Great Barrier Reef pays +2 per adjacent tile, and Gathering Storm added +2 per reef tile, +2 per geothermal fissure, and +2 for Pamukkale. A Campus wedged between the Great Barrier Reef and a couple of mountains can open at +6 or better, which is about the ceiling of the system before civ abilities start stacking on top.

Clustering, and the civs that break the rules

Every two adjacent districts add +1 science, which is the game nudging you to build tight instead of scattering districts around your borders. Japan takes this the furthest - Meiji Restoration gives a full +1 per adjacent district instead of the usual half, so Japanese cities want districts packed wall to wall. Korea runs the opposite way: the Seowon starts at a fixed +4 and loses 1 science per neighboring district, so it goes out on the edge of town with its neighbors left empty.

A concrete target to aim for: a Campus touching three mountains and two districts sits at +4 before any multiplier. Slot Natural Philosophy and that's +8 science from placement alone, more than most early buildings add. Specialists push it further - each citizen you assign to the Campus is worth another +2 science.

Commercial Hub and Harbor Trade Route Bonuses

The two gold districts are a pair, and they want completely different terrain.

The Commercial Hub cares about rivers. +2 for touching one at all (the flat, once-only version from earlier), +2 per adjacent Harbor, +1 per two adjacent districts. That's the whole base kit - no terrain bonuses, no mountains, nothing else. A hub touching a river, a Harbor, and two other districts hits +5 gold, which is a genuinely strong payout. It's also why river bends near a coast make such good city sites.

The Harbor has to go on a coast or lake tile that touches land. It earns +2 for sitting next to the City Center, +1 per adjacent sea resource like fish or crabs, and the usual +1 per two districts. Since it must touch land anyway, "as close to the City Center as the coastline allows" is usually the entire decision. The two districts feed each other: a Harbor parked beside the City Center collects its +2, and a Commercial Hub beside that Harbor collects +2 from it.

The trade route part, which is the real prize

Here's what a lot of players miss: the adjacency is nice, but these districts exist for trade route capacity. Route count is the engine behind everything else - internal routes pump food and production into your young cities, foreign routes pay gold.

The capacity math has a cap buried in it. A city can only ever add one route from this whole chain. On the expansion rules the route arrives when you finish a Market or a Lighthouse, not from the bare district, and building both still only counts once. So a port city with a Commercial Hub, a Harbor, a Market, and a Lighthouse is carrying two trade routes total, not four. Pair the districts for the adjacency if the terrain allows - just don't expect a route explosion out of it.

Routes feed off the destination city

Route yields are decided by the districts in the city the route is pointed at. A Campus at the destination adds science to routes arriving there, a Commercial Hub adds gold, a Harbor adds gold and food. The Civilopedia lists this as each district's "trade yields" with separate values for domestic and international destinations. That's a quiet second reason to build one tall district cluster instead of spreading them thin - every route aimed at that city gets richer.

Specialists are worth a look too. A Commercial Hub citizen yields +4 gold, the fattest specialist slot in the game. Harbor citizens give +2 gold and +1 food.

Theater Square and Holy Site Placement Tips

These two are the awkward ones. Their good spots are rare, and they compete over terrain nothing else wants.

Holy Site: mountains, woods, and natural wonders

The Holy Site pays +2 per adjacent natural wonder tile, +1 per mountain, +1 per two unimproved woods tiles, and +1 per two districts. The woods part carries a catch - it has to be unimproved woods, so the moment you drop a lumber mill on them for production, the faith dries up.

If you're going for a religion at all, this district wants to be early. It's +1 Great Prophet point per turn, and there are only so many religions before the AI locks the rest up. A rushed +2 Holy Site in the Ancient Era beats a perfect +5 one that shows up after the last prophet is gone.

Pantheons are where Holy Site placement gets fun. Dance of the Aurora gives +1 faith per adjacent tundra tile, Desert Folklore does the same for desert, and Sacred Path for rainforest. Russia with Dance of the Aurora drops a Lavra (their half-price Holy Site) in the middle of a frozen wasteland and prints faith off terrain nobody else can use. All unique districts cost about half what the regular version does, by the way, which is a bigger deal than it sounds.

One belief turns the whole thing upside down: Work Ethic makes Holy Site adjacency produce production as well as faith. That +6 tundra Lavra is suddenly also your factory district.

Theater Square: build it in the middle of everything

The Theater Square has the weakest baseline in the game. Its best friend is the player-built wonder, at +2 culture per adjacent tile, plus +2 per adjacent Entertainment Complex or Water Park on Gathering Storm numbers (vanilla rules paid only +1 per wonder and skipped the entertainment pairing).

Since wonders and Entertainment Complexes are things you place, this is the one district you plan backwards: pick the Theater Square's tile first, then decide which neighboring hexes will hold wonders later. Sticking it on the edge of town where nothing will ever touch it is how you end up with a +1 Theater Square in 1800 AD.

Greece's Acropolis is the fun exception - it collects a full +1 culture per adjacent district, no per-two nonsense, but it has to sit on hills. Pericles basically plays a different game than everyone else.

A distinction worth a beat before you settle: natural wonders feed Holy Sites, built wonders feed Theater Squares. Mix those up and you'll find yourself founding cities next to the wrong landmark.

Planning Your City Layout Before You Build

Adjacency is mostly decided on the turn you settle. Here's the boring math that makes planning matter so much.

The population gates

A city gets one specialty district slot at size 1, then another at population 4, another at 7, another at 10. So a typical mid-game city is holding three districts, maybe four. You can't build your way past it - the slots come from growth. That's why "which three districts is this city for?" is a question worth answering the turn you plant it.

Lock the price early

District production costs climb as you research techs and civics. But the price freezes the moment you place the district, even if you immediately switch the city over to building something else. Placing a district cheap and finishing it 50 turns later is a legitimate, widely used play - the placement is the purchase, the production is just the delivery. Aqueducts are the classic candidate since they don't consume a specialty district slot at all.

Tiles are gone forever

Whatever hex a district sits on stops being workable, period. A district on a good hill is a hill you never mine. Between that and the population cap, a city that paves its best tiles early runs out of room for the districts it actually wanted. The rule of thumb: districts go on flat, yield-poor tiles, and your hills and resources stay open.

The cluster pattern

The strongest general layout is a tight ring - City Center in the middle, districts packed around it so most of them touch two or three neighbors. Everything in the cluster collects the +0.5 from the districts beside it, which quietly adds +1 or +2 across the board. Wedge the Government Plaza into the middle of the ring and every district touching it grabs another +1 on top.

For a river city, something like this works: City Center on the river, Aqueduct touching the City Center, Industrial Zone touching the Aqueduct for the +2 production, Commercial Hub on the river side, and the Campus or Holy Site pushed toward whatever mountains or woods are in range. Found cities about four to six tiles apart so the clusters can lean on each other. Germany's version of that plan is nastier still - the Hansa pulls +2 from an adjacent Commercial Hub on top of everything else, and Germany's free extra district slot per city means one more piece in the ring.

Buy the tiles before you need them

Gold-purchase the hexes you've earmarked for districts early. Borders creep slowly on their own, and there's a special kind of pain in having a +4 Campus spot sitting two tiles outside your border when a neighbor's culture pressure takes the ground.

Read the preview before you commit

With a district selected, click through every legal tile and read the number the game prints on each one. The mistake isn't bad math, it's placing a district without looking at the alternatives one hex over.

For a quick sanity check while you do it: if the preview is showing less than +2, waiting a few turns for a better tile usually beats building now. The exception is the Aqueduct - place that for the housing (up to +6 in a city without fresh water) and treat the +2 production it hands the neighboring Industrial Zone as a bonus.