The Lord mentions the 7 churches in Revelations 1 and at that time they were all in Turkey. I think all of Asia is in these countries however they also represent types of churches so all could apply to some churches of Christ in the West. Interesting that the church persecution is rare in the West, would that mean they had a stronger witness of Christ that the majorities are Christian? Were they maybe Jews and Christians that were awakened to Joshua 1:4 (KJV) From the wilderness and this Lebanon even unto the great river, the river Euphrates, all the land of the Hittites, and unto the great sea toward the going down of the sun, shall be your coast. That they maybe sought the Lord on where to go and headed West that was given to people of the Lord's. Many even came from the EU area that even were Christians and Jews.
Western Asia (18)
Armenia — ~98–99% Christian (majority Armenian Apostolic) T — Established: 301 AD
Azerbaijan — small Christian minority, <5% (primarily Russian Orthodox & others) [estimated] — Established: 4th century AD
Bahrain — ~14% Christian (includes expatriates) — Established: 4th century AD
Cyprus — ~79% Christian (Orthodox) — Established: 45 AD
Georgia — ~88–89% Christian (Orthodox) — Established: 327 AD
Iraq — ~1–3% Christian (minority) — Established: 1st–2nd century AD
Israel — ~2–3% Christian (minority) [estimated] — Established: 30–33 AD
Jordan — ~3–4% Christian (minority) — Established: 1st century AD
Kuwait — ~17% Christian (includes expatriates) — Established: 4th century AD
Lebanon — ~32–40% Christian (significant minority) — Established: 1st century AD
Oman — ~3–4% Christian (includes expatriates) — Established: 4th century AD
Qatar — ~14% Christian (expatriate strong minority) — Established: 4th century AD
Saudi Arabia — ~3–5% Christians (mainly expatriates) — Established: 4th–6th century AD
State of Palestine — ~6% Christian (minority) — Established: 1st century AD
Syria — ~10% Christian (minority) — Established: 1st century AD
Turkey — ~0.3–0.5% Christian (small minority) — Established: 1st century AD
United Arab Emirates — ~9% Christian (expatriate population) — Established: 4th century AD
Yemen — ~0% Christian (very small minority) — Established: 4th century AD
Central Asia (6)
Kazakhstan — ~40–46% Christian (Orthodox majority minority) — Established: 4th–5th century AD
Kyrgyzstan — ~7–10% Christian (smaller minority) [estimated] — Established: 7th century AD
Tajikistan — ~2% Christian (very small) [estimated] — Established: 7th century AD
Turkmenistan — ~7% Christian [estimated] — Established: 4th–6th century AD
Uzbekistan — ~2–3% Christian [estimated] — Established: 7th century AD
Mongolia — ~1–2% Christian (small minority) [estimated] — Established: 7th century AD
South Asia (9)
Afghanistan — ~<1% Christian (very small) — Established: 5th century AD
Bangladesh — ~0.5–1% Christian (small minority) — Established: 16th century AD
Bhutan — ~<1% Christian (small minority) — Established: 1627 AD
India — ~2–10% Christian (varies by estimate) — Established: 52 AD
Iran — ~0.4–1% Christian (small minority) — Established: 1st–2nd century AD
Maldives — ~<1% Christian (very small) — Established: 16th century AD
Nepal — ~1–2% Christian (small minority) — Established: 18th century AD
Pakistan — ~1–2% Christian (minority) — Established: 1st century AD
Sri Lanka — ~7–10% Christian (minority) — Established: 6th century AD
East Asia (5)
China — ~5–11% Christian (large minority) — Established: 635 AD
Japan — ~1–2% Christian (small minority) — Established: 1549 AD
Mongolia — ~1–2% Christian (small minority) — Established: 7th century AD
North Korea — <1% Christian (very small/censored) — Established: 18th century AD
South Korea — ~20–32% Christian (significant minority) — Established: 1784 AD
Southeast Asia (11)
Brunei — ~10–14% Christian (minority) — Established: 16th century AD
Cambodia — ~<1% Christian (very small) — Established: 1555 AD
Indonesia — ~10–12% Christian (minority) — Established: 7th century AD
Laos — ~2–3% Christian (small) — Established: 17th century AD
Malaysia — ~7–9% Christian (minority) — Established: 1511 AD
Myanmar — ~7–8% Christian (minority) — Established: 1720s AD
Philippines — ~90–93% Christian (majority) — Established: 1521 AD
Singapore — ~15% Christian (minority) — Established: 1819 AD
Thailand — ~1–1.5% Christian (very small) — Established: 1555 AD
Timor-Leste — ~90–98% Christian (majority) — Established: 16th century AD
Vietnam — ~8–12% Christian (minority) — Established: 1533 AD