The village of Cuiheng, where Sun Yat-sen was born, sits within Zhongshan's boundaries and can be visited today. Sun grew up in modest circumstances, the son of a Hakka farmer, and left as a young man to study medicine in Hong Kong and Guangzhou. He returned as a revolutionary. The republican movement he led eventually toppled the Qing dynasty in 1911, ending more than two thousand years of imperial rule in China. He died before the full implications of that change could be settled — but not before his name had become synonymous, in Chinese political thought, with the ideals of the republic.

Zhongshan honors him with a memorial hall in the city, accessible by city bus, and with the name on every map. Less obviously, the city also carries the memory of another dimension of his era: during World War II, Zhongshan was the site of significant guerrilla resistance, and the villages that hid resistance fighters are still reachable on short drives through wooded lanes outside the city.

Zhongshan is linguistically diverse in a way that surprises visitors expecting a simple Cantonese-speaking city. Cantonese serves as the common language, but the Shiqi Dialect — spoken in the historical downtown district — differs from standard Cantonese in pronunciation and tone structure enough that even fluent Cantonese speakers find it difficult to follow. In some districts, the local languages belong to the Min family of Chinese languages, related to Hokkien and Teochew. In others, Hakka is the first language at home.

The result is a city where linguistic code-switching is routine. Most residents who speak a local dialect also speak Cantonese, and most also speak Mandarin — China's official national language — because the education system and business culture require it. Migrants from other provinces who have arrived to work in manufacturing add yet more layers. The city's 4.4 million permanent residents, recorded in 2020, represent much of China's internal diversity condensed into one subtropical delta city.

Zhongshan sits on the west bank of the Pearl River estuary, flanked by Guangzhou to the north and Zhuhai to the south, with Macau reachable via Zhuhai and Hong Kong reachable by high-speed ferry in about an hour and ten minutes. By the standards of the Pearl River Delta — one of the most densely urbanized and industrialized regions on Earth — Zhongshan moves at a gentler pace. Housing costs roughly a third of what comparable accommodation runs in Guangzhou or Shenzhen. Farmland persists between the urban districts. The annual average temperature of about 23 degrees Celsius makes the subtropical climate livable for most of the year, though the summers are humid and hot.

The Guangzhou–Zhuhai Intercity Rail, opened in January 2011, threads through the city with two stations: Zhongshan Station in the eastern industrial zone and Zhongshan North Station, which is closer to the Shiqi district downtown. The train to Guangzhou South takes around 35 to 45 minutes, placing Zhongshan firmly within the commuter and day-trip orbit of the provincial capital.

The main pedestrian street in Zhongshan's downtown area, Sunwen West Road — named for the man the city itself is named for — is lined with European-style buildings from the early Republican period, now repurposed as shops on their ground floors. Walking it gives a sense of Zhongshan's position in the early twentieth century: a place where Western architectural influence arrived alongside the political changes Sun Yat-sen helped bring about, and where that blend of Chinese and European forms has been preserved rather than demolished.

Beyond the downtown, Zhongshan's sights are spread across a wide area. Buddhist temples offer shaded courtyards. The Guzhen district near the Jiangmen border is known for lighting manufacturing and wholesale — an entire town where light shops have outcompeted banks for retail space. Nearby Minzhong Town has a traditional water-town district reached by city bus. The city rewards slow exploration, which is fitting for a place that has always been quieter than its neighbors.