I'm using Zombies with a bunch of other mods that affect evolution, biters, etc.
Zombies are spawning, but they don't seem to ever attack unless something leads them away from their spawners.
Zombies don't appear to be evolving the same way as biters (even modded biters, like Armoured and Frost). They reached high (max?) evolution earlier in my current save, when I reached max evolution and had to reset it. Zombies are still spawning Behemoths, making them very dangerous for biters (who do attack zombie bases as expected) and me (I'm using Py and still early in the tech tree, with no effective tools for dealing with extreme bullet sponge zombies). Biters are spawning evolution-appropriate units from their mods and vanilla.

I have tried wiping out nearby zombie bases using a kill-nearby command for their separate faction with a range of 1000 around most of my own base, but I still see highly-evolved zombies every time I expand into new chunks. Is it possible for Zombies to share evolution stats with Biters so that this doesn't happen? Do zombies make new bases or just spawn in new chunks?

They should spawn based on the evolution. They are on a different "force" or team to the biters if you have them fighting.
Weird they're not attacking either. The Zombies are mostly just a copy of Biters with the look changed.

Could you send a mod list through, potentially one of those are doing something strange. Otherwise I'm not sure.

Maybe they're not affected by Extended Evolution or Evolution Reduction via Destruction?
Not sure why resetting evolution via console didn't affect Zombies at all.

Base mod
Elevated Rails
SearchlightAssault
Todo List
!skins (Skins Factored)
AAI Loaders
AAI Programmable Structures
AAI Programmable Vehicles
AAI Signal Transmission
AAI Signals
AAI Chaingunner, Flame Tank, Flame Tumbler, Hauler, Ironclad, Laser Tank, Miner, Warden
AAI Zones
Actual Craft Time 2.0
Advanced Fluid Handling
Alien Biomes (and Graphics)
Ammo Alerts
Aquarium
Armoured Biters
Better Chatting
Better Ecology
Big Data String 2
Bigger Artiller (balanced)
Blueprint aligner
Blueprint Extensions (Kux)
Bob's Adjustable Inserters
Boombox
Bottleneck Lite
B.R.E.A.M.
Bullet Trails
C&C Low Power Alerts
C&C RedAlert Sounds
Cargo Ships (and Graphics)
Character mod helper
Chemical Rockets
Cold Chain Logistics
Combat Robot Overhaul
Companion Drones 2.0
Configurable Valves
Crafting Tools
Cursor Enhancements
Deadlock's Stacking Beltboxes & Compact Loaders (with Stacking for Pyanodon)
Death Counter
Dectorio
DeleteChunks
Distant Misfires
Diurnal Dynamics
Enable all Feature Flags
Endless Resources
engineer tf2
Even Distribution
Evolution Reduction via Destruction 2.0
Explosive Biters
Explosive Excavation
Extended Evolution Settings
Factorio Library
Factory Planner
Factory Search
Fallout Power Armor
Fire Lights
Flow Control
Fluid Memory Storage
FNEI
Frost Biters
Grappling Gun
GUI Unifyer Unified
Helmod
Honk
Hovercrafts
I, Robot
Infinite Resources
Informatron
Inlaid Lamps Extended
Inserter Cranes for Pyanodon
Inventory Repair
Inventory Sensor
Jetpack
King Jo's Dunka Dunka Science, Fancy Lamp, Warhammer Servo-Skull
Kuxynator's Core Library
Larger Lamps 2.0
Laser Tanks
Library for mods by Pi-C
Light Artillery
Loaders modernized
Mechanicus (rebuild)
Memory Storage
MFerrari lib
Milestone Saves
Milestones
Modular Turrets
More Achievements
My Quick Start
Napalm Artillery
Nixie Tubes
Not Enough Parameters
Noxys Trees
Party stuff
Pavement Drive Assist Continued
Poison kills nests
Project Cybersyn
Pyanodon's (full suite of mods, plus Hard Mode)
Quality of Life Research
Rampant Arsenal (fork)
Rampant, Fixed
Rate Calculator
Remove Biter Soil & Nuke Scorch Marks
Renai Transportation
Repair Turret
Resource Map Label Marker
Robot Attrition
RobotTank
Rocket-Silo Construction
Rocks heal over time just like trees
Rusty's Locale Utilities
Schall Alien Loot, Alien Tech, Ammo Turrets, Arachnid Platoon, Armoured Train, Artillery, Circuit Group, Endgame Evolution, Entity Inspector, Gun Pod, Inserters, Land Mine, Machine Modification, Machine Scaling, Module Placement, Modules, Oil Fuel, Overseas Railway, Pickup Tower, Pipe Scaling, Primary Battery, Radioactive Waste, Recharging Weapon, Recipe Scaling, Starting Inventory, Starting Tech, Tank Platoon, Tank Woodcutting, Transport Group, Uncraft, Virtual Signal
Shield Generators
Shield Projector
Shuttle Train Refresh
Side Inserters
SMG Equipment
Speaker Signals 2
Spidertron Enhancements
Spidertron Patrols
Squeak Through 2
Stats GUI
Stone Water Well
Structure Destroyed
Teleporters
Text Plates
Time Tools (+game speed + clock combinators)
Toxic Biters
Tree Collision
Valves
Vehicle Corpses
Vehicle Physics
VehicleSnap
Warehousing Mod
Water-Friendly Walls
Waterfill
What is it really used for?
Zombie Horde - Fation
ZwerOxotnik's extendable mod