Cell towers in Saint-Etienne (Loire)

Supports leave a gap of about 3.5 km to the south-east of the centre. 5 supports are declared underground, in a gallery or a tunnel. For questions about exposure, see the exposure guide.

Declared supports include 5 underground or tunnel sites, 2 bridges or viaducts and 1 church or religious building, with buildings making up most of the remainder.

Place names on the register include Stade Geoffroy-Guichard, 105 rue de l'Innovation, La Perrotière - Terrenoire, Souterrain de Terrenoire, 7 boulevard des Freres Gauthier and Allée Roger Jacquemot.

64 systems were switched on in the past 12 months. ANFR has approved 5 new sites that are not live yet, plus additions on 28 existing masts. New: Bouygues Telecom (3G, 4G and 5G) at La Bernarie, Bouygues Telecom (4G and 5G) at 24 rue Michel Laval and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 70 Cours Fauriel. 94 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

The commune owns 4 of the 158 masts, Hivory owns 7.

2013 was the busiest year, with 513 new systems, most of them 4G. Bouygues Telecom opened 5G here in November 2020; Free Mobile followed in December 2020, SFR followed in December 2020. The oldest transmitter still listed here goes back to 1995.

117 of the 158 masts are rooftop-mounted. The tallest support is 77 m at 33 rue le Corbusier (building). The median height of measured supports is 24 m.

Of the 158 masts in the commune, 6 masts carry all four networks.

By mast count, Saint-Etienne is 1st of the 28 Loire towns that have five or more.

3.5 GHz 5G is declared by Bouygues Telecom on 45 of its 57 masts, SFR on 43 of its 57 masts, Orange on 42 of its 52 masts and Free Mobile on 40 of its 50 masts.

Nearby, La Ricamarie (3.6 km to the south-west) has only 13 masts.

At 80 km² with 173,136 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the Saint-Étienne Métropole intercommunal grouping.

Source: operator declarations to ANFR, as of October 2026. Projects that are only approved are left out of the totals.