Unlike the Z cameras, which are all made in Thailand, Nikon manufacturers Nikkor lenses for the Z-mount in three countries (and I believe in at least four different facilities).
A few higher end, more intricate lenses are made in the Tochigi plant in Japan, which has limited capacity:
- 24-70mm f/2.8 S
- 58mm f/0.95 S NOCT
- 100-400mm f/4.5-5.6 VR S
- 400mm f/2.8 TC VR S
- 600mm f/4 TC VR S
The majority of Z-mount Nikkors are made in Nikon's primary Thailand manufacturing facility alongside the cameras. You'll note that over half of these lenses are also available in camera bundles (marked below with an *), which explains why it makes sense to make them in the same plant (though for some reason the 24-50mm f/4-6.3 is not).
- 12-28mm f/3.5-5.6 PZ VR DX
- 14-24mm f/2.8 S
- 14-30mm f/4 S
- 16-50mm f/3.5-6.3 VR DX*
- 18-140mm f/3.5-6.3 VR DX*
- 24-70mm f/4 S*
- 24-120mm f/4 S*
- 24-200mm f/4-6.3 VR*
- 26mm f/2.8
- 28mm f/2.8*
- 40mm f/2*
- 50mm f/1.2 S
- 50mm f/1.8 S
- 50-250mm f/4.5-6.3 VR DX*
- 70-200mm f/2.8 VR S
- 105mm f/2.8 VR S
- 135mm f/1.8 S Plena
The remaining Nikkor Z-mount lenses are made in China. As far as I can discern, that occurs at both a Tamron facility in Foshan China (marked below with an #) as well as one or possibly two Nikon facilities:
- 17-28mm f/2.8#
- 20mm f/1.8 S
- 24mm f/1.7 DX
- 24mm f/1.8 S
- 24-50mm f/4-6.3*
- 28-75mm f/2.8#
- 28-400mm f/4-8 VR
- 35mm f/1.8 S
- 50mm f/2.8 MC
- 70-180mm f/2.8#
- 85mm f/1.2 S
- 85mm f/1.8 S
- 180-600mm f/5.6-6.3 VR
- 400mm f/4.5 VR S
- 600mm f/6.3 PF VR S
- 800mm f/6.3 PF VR S