Technically, any stock that pays a dividend, but income stocks are normally thought of as stocks that pay a higher than average dividend. Exactly what would be considered a "high" dividend depends on current interest rates, but generally, a dividend yield of 4% or more would be considered high. Income stocks tend to be the more established mid- to high-capitalization stocks.
These pay higher-than-average dividends over a sustained period. They are typically long-established companies with stable earnings or utilities such as phone companies.
Stocks that have a consistent history of paying high dividends
stocks with higher-than-average dividend yields. (Often, but not always, stocks with dividends that are considered likely to be maintained or raised.)
stocks that have consistently paid high dividends.
Stocks of corporation with relatively constant earnings and dividends along with a high dividend yield in comparison with other stocks, e.g., utility company stocks
Stock in companies that pay out the majority of their earnings to shareholders in the form of dividends. Once utilities and banks were in this category, but some (like PGE) have cancelled dividends. Speculative stocks.
Stocks of stable companies, having low to moderate risk and representing relatively conservative investments. Income stocks tend to be in stable service industries, such as telecommunications and utilities, and can offer both higher-than-average dividend payments and the possibility of capital appreciation.
Shares of companies with solid earnings records that pay above-average dividend returns to investors.
Income stocks, such as public utilities, usually pay high dividends in relation to their market price, providing shareholders with greater quarterly income. These stocks are generally attractive to people who buy stocks for current income, particularly the elderly and retired.