What Is Search Volume?
Search volume refers to the average number of times a particular keyword or phrase is searched per month within a given location. It is one of the most fundamental metrics in keyword research and SEO strategy, as it tells you how much demand exists for a specific topic or query. Tools like Google Keyword Planner, Ahrefs, and Semrush provide search volume data, typically showing monthly averages over the past 12 months.
Search volume is almost always expressed as a monthly figure and is location-specific. A keyword might have 50,000 monthly searches globally but only 1,200 in South Africa. When optimising for a local audience, always filter by country or region to get a realistic picture of the opportunity. Most professional SEO tools allow you to select South Africa as your target country.
It is important to understand that search volume is an estimate, not an exact count. Google's actual search volume data is proprietary and not publicly released. Third-party tools derive their estimates from clickstream data, Google Keyword Planner ranges, and statistical modelling. This means two tools may show different volumes for the same keyword. Use volume as a directional signal, not a precise figure.
Search volume should always be assessed alongside keyword difficulty and search intent. A keyword with 10,000 monthly searches is only valuable if it is rankable for your site and if the searchers behind it represent your target audience. A keyword with 200 monthly searches and strong commercial intent can deliver more qualified leads than one with 10,000 searches from people doing casual research.
Search Volume In Practice
The scenario below is an illustrative example, not a Juicy Designs client result. The figures indicate the scale of difference that search volume research typically reveals, so treat them as indicative rather than measured.
Picture a Gauteng-based estate agent reviewing keyword opportunities. The agent might find that "property for sale" shows around 8,000 monthly searches in South Africa, while "property for sale in Centurion" shows something in the region of 320. The broader term is much harder to rank for and attracts buyers from across the country, many of whom are not in the agent's market. The location-specific term, despite its lower volume, is more directly relevant to the agent's listing area and more likely to generate enquiries from qualified buyers.
When building a content calendar, search volume helps prioritise which topics to address first. High-volume, medium-difficulty keywords make good targets for cornerstone content, pillar pages, and service pages. Lower-volume, high-intent queries are suited to supporting blog posts, FAQ sections, and long-tail keyword pages. Together, they form a topic cluster that builds authority in the subject area and gradually improves rankings across all related terms.
How search volume is used
Search volume is an estimate of how many times a particular keyword or query is searched, typically expressed as an average number of searches per month, and it is a core input into keyword research and content and campaign planning. It indicates the size of the potential audience for a term: a keyword with high search volume is searched often, representing more potential traffic, while a low-volume keyword is searched rarely. Marketers use search volume to gauge demand, to prioritise which keywords and topics to target, and to estimate the traffic potential of ranking for or advertising on a term. It is provided by keyword tools, which estimate it from data, so figures are approximations and can differ between tools. Search volume is a valuable signal of demand, but it is only one factor, and using it well means weighing it alongside relevance, intent, competition and value rather than treating the biggest number as automatically the best target, since a high-volume term is not worth pursuing if it does not fit the business or is impossibly competitive.
Search volume in context
Search volume matters, but chasing it in isolation is a common mistake, since the biggest number is not always the best target. A high-volume keyword may be extremely competitive, so ranking for it is unrealistic, or too broad and low in intent, so the traffic converts poorly, while a lower-volume keyword with clear intent, manageable competition and high relevance to what you offer can deliver more actual value. This is why search volume should be weighed alongside keyword difficulty (how hard it is to rank), search intent (what the searcher wants and whether it fits your goal), and commercial value (how close the term is to a conversion). Long-tail keywords, with lower individual volume but clearer intent and less competition, collectively often deliver more valuable traffic than a few high-volume head terms. For a specific market such as South Africa, local search volumes are naturally smaller than global figures, so absolute numbers should be judged in that context rather than against worldwide totals. Used as one factor among several, search volume helps prioritise sensibly; treated as the sole measure of a keyword's worth, it leads to targeting terms that are too competitive or too low in intent to pay off.
FAQ
Why is search volume lower for South African keywords than global ones?
South Africa's online population is smaller than markets like the USA or UK, so local search volumes are naturally lower. A keyword with 500 monthly searches in South Africa may represent a highly valuable niche. Do not dismiss low-volume local terms as they can convert well and face less competition than global equivalents.
Should I only target high search volume keywords?
No. High search volume keywords are usually the hardest to rank for and least specific in intent. A balanced SEO strategy targets a mix of high-volume aspirational terms and lower-volume, high-intent keywords. The lower-volume terms often drive more qualified leads and conversions for South African businesses.
Should you only target high search volume keywords?
No. High-volume keywords are often very competitive or too broad and low in intent, so they may be unrealistic to rank for or convert poorly. Lower-volume keywords with clear intent, manageable competition and high relevance can deliver more value. Weigh search volume alongside difficulty, intent and commercial value rather than chasing the biggest number.