Retail catchment explained: primary, secondary, 1, 3 and 5 km

A retail catchment is the area your customers actually come from. The primary catchment is the inner zone that supplies most of your regular customers; the secondary catchment is the wider ring that supplies fewer customers who visit less often. As a working rule, daily-needs shops depend on about 1 km, weekly trades on about 3 km and destination trades on 5 km or more. In the Klang Valley, measure in driving minutes as well as kilometres.

It is the geography that feeds a shop. Two shops 500 m apart can have very different catchments if a highway, river or toll plaza sits between them and the homes. That is why a circle on a map is only the starting point: real catchments follow roads, U-turns, parking and habits.

The primary catchment is the closest zone, where customers find your shop the most convenient choice and come back often. For a convenience store it may be a few housing areas within walking or a short ride; for a family restaurant it may be the surrounding township. Losing part of the primary catchment, for example to a new competitor across the road, hurts sales immediately.

The secondary catchment lies beyond it. Customers there have other options closer to home, so they come less often, usually for a reason: a better menu, a specialist service, or because they pass by on the way to work. Some brands also track a tertiary or "fringe" zone of occasional visitors, such as tourists or people visiting relatives.

These are working assumptions, not rules. Delivery-led brands also need the delivery radius: ZUS Coffee had about 70% of sales from delivery and pickup in April 2025 (Bloomberg via The Malaysian Reserve). See the convenience trade page for how one daily-needs trade reads a site.

1. Draw a 3 km radius, then trim it to what is reachable within about 10 minutes' drive.
2. List every residential area and condominium inside, and note landed versus high-rise.
3. Look up population and households for the nearest census areas on DOSM's Kawasanku dashboard and the MyCensus 2020 mukim tables.
4. Subtract industrial land, parks and empty plots that the census area includes.
5. Add daytime populations: offices, colleges, hospitals.
6. List competing outlets and other hubs inside the ring.

Chains publish useful benchmarks. 99 Speedmart designs each store to serve 1,500 to 2,000 households (Apex Research via The Star, 21 October 2026). More in how chain brands choose locations.

At 5 km you are no longer counting neighbours; you are mapping competition. In most of the Klang Valley a 5 km ring holds several other commercial centres. For each one, note its size, anchors and rent level, and ask why a customer would drive past it to reach you. If you cannot answer, your realistic catchment is smaller than 5 km.

Kepong Baru is a settled family hub; the middle half of its asking rents is RM 5,800 to RM 9,000 a month across 51 adverts (MCE analysis of recent portal adverts, Nov 2026: last 6 months, shop types only, bait and duplicate adverts removed, middle half of asking prices).

• Step 1, public base. Kawasanku lists 106,199 people for the P.114 Kepong parliamentary seat (Census 2020). That boundary does not match a 3 km circle, which crosses into neighbouring seats, so treat it as context only.
• Step 2, households. Divide the population of each area inside the ring by its average household size from the same census table. Population ÷ average household size = households.
• Step 3, trim. Remove industrial and non-residential land inside the ring.
• Step 4, test. Compare the result with your own benchmark, for example households per outlet in your best existing stores.
• Step 5, verify. Count on site at the slots that matter to your trade.

We do not publish household counts for single sites because a circle around one unit needs map work, not a table. MCE prepares this in a site report on request.