Kobe's 9 wards ranked by natural hazard exposure — 255 traded districts checked against official data

"Which Kobe ward is safest from natural hazards?" is a very Kobe question. The city is squeezed between the Rokko mountains and the sea, and floods, landslides, and liquefaction each bite in different places.

This article checks, one by one, the districts where homes and land actually changed hands — 255 districts across 9 wards with transactions in Q1 2026 — against official data. No reputation, no generalities: measured values.

What this article shows

• For each ward, the share of traded districts hitting flood, landslide, or liquefaction
• Nishi, Kita, and Tarumi have the fewest hits; Higashinada and Hyogo the most
• The least-exposed wards face the steepest 2050 population decline — the relationship runs the wrong way
• Nada strikes the best balance between the two

Method — checking the districts where people buy

A ward can't be judged from a single point. So district names with transactions recorded in Q1 2026 were collected per ward from Japan's Real Estate Information Library, each geocoded to a representative point, and checked for:

• inclusion in a flood inundation zone
• inclusion in a landslide alert zone
• a liquefaction-prone rating (not mere inclusion in the map)

Restricting to traded districts shows the hazard exposure of the places people are actually buying. Every one of the 255 geocodes was verified to land in the same district.

Ranked by hazard exposure

"Any" counts districts hitting at least one of the three (without double counting).

What is clear: the closer to the sea and rivers, the more hits. In Hyogo, 20 of 32 districts (63%) fell in a flood inundation zone, and 18 were rated liquefaction-prone.

Low hazard and a held population do not coincide

Same order, now with the 2050 population projection and the share aged 65+.

Top to bottom, hazard exposure rises. The population outlook runs the other way: the least-exposed wards — Nishi, Kita, Tarumi — face declines of -23.9% to -29.6% by 2050, with 65+ shares of 29.3–31.2%.

Only Chuo is projected to grow (+2.6%), yet 42% of its traded districts hit at least one hazard.

In Kobe, "pick a low-hazard ward" and "pick a ward that holds its population" are not the same instruction. Which to prioritize depends on how long you hold and whether you might sell.

Ward by ward

• Hyogo and Nagata: flood and liquefaction-prone ratings overlap on the southern flats — Shinkaichi, Minatomachi, Daikaidori (Hyogo); Komagabayashi, Futaba (Nagata).
• Higashinada: beyond southern districts like Uozaki, Sumiyoshi-minami, and Fukae, even hillside districts such as Okamoto and Mikage-yamate had representative points in flood zones. Riverside land along the Sumiyoshi and other rivers is affected even uphill.
• Chuo: hits cluster on the waterfront — Kaigandori, Shinkocho, and Port Island (Minatojima).
• Nada: only three districts hit flood (Yamato, Nada-kitadori, Nada-minamidori); most hits are Rokko-side landslide zones such as Shinohara-honmachi, Tsurukabuto, and Kunitamadori.
• Suma, Tarumi, Kita, Nishi: few hits, limited to the shoreline (Sumaura, Shioya) and some riverside districts (Dojo, Tamatsu).

Higashinada — three points versus the whole ward

In an earlier article, three Higashinada addresses (Okamoto 1-chome, Sumiyoshi-Miyamachi 1-chome, Fukaehama) all came back outside flood inundation zones (the Higashinada article).

Across the whole ward, however, 17 of 27 traded districts (63%) had representative points inside a flood zone. Okamoto's own representative point is inside one. Same "Okamoto": 1-chome 1 is outside, the district point is inside. The three points simply happened to miss; this does not make Higashinada low-flood. It also shows how easily a clean-looking result can be produced by choosing points.

What to verify before buying

1. Check flood, landslide, and liquefaction at the property's street number. The figures here are district representative points; results change by address.
2. On the waterfront (southern Hyogo, Nagata, Chuo, Higashinada), check tsunami and storm surge too. "Flood" here means river flood inundation zones only.
3. On the hillside (parts of Nada, Kita, Suma), read the landslide zone map and look at retaining walls. Landslide zones are narrow and a representative point misses many of them.
4. Where population is projected to fall steeply, think about future buyers. Kita, Nishi, Suma, Nagata, and Tarumi face large 2050 declines. For long holding this matters less; if you may move, ask the agent about time-to-sale.

What this check cannot tell you

• Variation inside a district — each district is represented by one point
• The full extent of landslide exposure — narrow zones are easy to miss, so it is likely undercounted
• Tsunami, storm surge, urban flooding — not included in "flood" here
• Earthquake shaking — not part of this check
• Districts without transactions — only districts with Q1 2026 deals are included

Sources and definitions

• Districts checked: district names with Q1 2026 transactions in the MLIT Real Estate Information Library — 255 across 9 wards
• Representative point: Google Geocoding of "Kobe + ward + district", verified to land in the same district for every district
• Flood / landslide / liquefaction: flood inundation zones, landslide alert zones, and the liquefaction tendency map from the same library; liquefaction counts prone ratings only
• Population and 2050 projection: 2020 national census and official future population projection (via e-Stat)
• Aged 65+: social statistics indicators (share aged 65+, 2020, via e-Stat)
• Median unit price: transaction total ÷ area; property types mixed; not a land price
• Data retrieved: September 11, 2026