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 with *), 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).
- 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*
- 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
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 with #) as well as one or possibly two Nikon facilities:
- 17-28mm f/2.8#
- 20mm f/1.8 S
- 24mm f/1.8 S
- 24-50mm f/4-6.3*
- 28-75mm f/2.8#
- 35mm f/1.8 S
- 50mm f/2.8 MC
- 85mm f/1.8 S
- 400mm f/4.5 VR S
- 800mm f/6.3 VR PF S